Owais Crawford
On September 8, 1994, a Boeing 737 operated by USAir crashed in Hopewell Township, Pennsylvania, while approaching Runway 28R at Pittsburgh International Airport. The aircraft, flying from Chicago's O'Hare International Airport to Palm Beach International Airport in Florida, with a stopover at Pittsburgh, was USAir's largest hub at the time. This accident marked the fifth fatal crash for the airline in five years and was the seventh-deadliest aviation disaster in the history of the United States.
| Characteristics | Values |
|---|---|
| Date of incident | 8 September 1994 |
| Aircraft | USAir Flight 427, Boeing 737 |
| Origin | Chicago's O'Hare International Airport |
| Destination | Palm Beach International Airport, Florida |
| Stopover | Pittsburgh International Airport |
| Location of crash | Hopewell Township, Beaver County, Pennsylvania |
| Fatalities | 131 (all on board) |
| Cause | Aircraft rudder malfunction |
| Other | The crash was the second-longest air crash investigation in history |
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What You'll Learn
USAir Flight 427 crash in 1994
On September 8, 1994, the USAir Flight 427, a scheduled flight from Chicago's O'Hare International Airport to Florida's Palm Beach International Airport with a stopover at Pittsburgh International Airport, crashed in Hopewell Township, Pennsylvania. The Boeing 737 aircraft was approaching Runway 28R at Pittsburgh, which was USAir's largest hub at the time. All 127 passengers and 5 crew members on board were killed in the crash, making it the second-deadliest accident involving a Boeing 737 at the time, and the seventh-deadliest aviation disaster in US history.
The National Transportation Safety Board (NTSB) investigated the crash and determined that the probable cause was a malfunction in the aircraft's rudder. The rudder went hard over in the opposite direction to that commanded by the pilots, causing the plane to enter an aerodynamic stall from which the crew was unable to recover. The investigation into the USAir 427 crash also helped solve the crash of United Airlines Flight 585.
In the arrival phase, Flight 427 was sequenced behind Delta Air Lines Flight 1083, a Boeing 727-200. Radar data indicated that Flight 427 was never closer than 4.1 miles (6.6 km) to Delta 1083. As Flight 427 entered the wake turbulence of Delta 1083, three sudden thumps and clicking sounds were heard, after which the 737 began to bank and roll to the left. The autopilot disconnected, and the first officer stomped on the rudder pedal, unaware that it had reversed hard to the left. As the aircraft's heading and bank angle skewed dramatically, the pilots attempted to counter the pitch angle, but the aircraft continued to roll while pitched nose-down towards the ground. Despite their efforts, the plane slammed into the ground and exploded, just seconds after entering the wake turbulence.
The crash site was located near the Aliquippa exit of I-376 and is on private property. The Commonwealth of Pennsylvania spent approximately $500,000 on recovery and cleanup efforts. The accident marked USAir's fifth crash in the period from 1989 to 1994 and contributed to the airline's financial crisis at the time. Following this crash, USAir ceased using Flight 427 as a flight number.
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Innovative airport design
Airports are often a city's first and last impression, and designers are increasingly recognising their role in showcasing a place's brand and story. Airport design has become a space for innovation, with functionality blending with cultural engagement.
The Pittsburgh International Airport, for example, was once dubbed the "airport of the future" for its X-shape, which reduced the distance between gates, and its underground tram system. It also featured an extensive shopping area, which was pioneering at the time.
The King Abdulaziz Airport in Jeddah, Saudi Arabia, features a terminal that was awarded the 1983 Aga Khan Award. The Western Hajj Terminal has been reimagined as a cultural space, intertwining art and historical artefacts to showcase Islamic heritage and convey a holistic perspective of Islamic arts.
Other innovative airport designs include the Portland International Airport, which features a large timber roof made from sustainably sourced regional wood, drawing inspiration from nature and Oregon's "signature greenery". The Techo International Airport in Phnom Penh, Cambodia, is designed by Foster + Partners and draws inspiration from vernacular architecture, responding to the tropical climate with interconnected human-scaled clusters, courtyards, and walkways.
The future of airport design will likely continue to focus on functionality and cultural engagement, with a shift towards more comfortable and aesthetically pleasing spaces that offer easy access to power for travellers.
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Accessibility and transport options
Pittsburgh International Airport is easily accessible from various parts of the state and beyond. The airport is located about 20 miles west of downtown Pittsburgh, Pennsylvania, and offers a range of transport options for travellers.
By car, the airport can be reached via the I-376 West highway, which connects to other major highways such as the Pennsylvania Turnpike (I-76) and the US-22. The airport has a consolidated car rental facility located a short distance from the terminal, housing several car rental companies, making it convenient for travellers who prefer to drive themselves.
For those seeking public transportation, the Port Authority of Allegheny County operates bus services that connect the airport to the city. Specific bus routes provide direct access to and from the airport, offering a convenient and affordable option for travellers.
Additionally, taxi services and ride-sharing options are readily available at the airport. Designated pick-up and drop-off areas are marked for these services, ensuring convenience and safety for travellers. Ride-sharing has gained popularity as a flexible and cost-effective transportation choice.
For travellers seeking a more personalized experience, limousine and car services are also an option. These can be arranged in advance, providing a comfortable and luxurious journey to and from the airport. Additionally, some hotels in the vicinity of the airport offer complimentary shuttle services for their guests, ensuring easy and efficient transportation.
Moreover, the airport caters to individuals with special needs and disabilities by providing a range of accessibility options. These include wheelchair assistance, accessible parking spaces, and elevators throughout the terminal. The airport is committed to ensuring that all travellers can navigate the facilities with ease.
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AirMall shopping experience
Pittsburgh International Airport is a civil-military international airport in Findlay Township and Moon Township, Pennsylvania, United States. It is about 10 miles west of downtown Pittsburgh and is the primary international airport serving the Greater Pittsburgh Region. The airport is owned and operated by the Allegheny County Airport Authority and offers passenger flights to destinations throughout North America, Central America, and Europe.
Pittsburgh International Airport has a sizeable freight business, with a Free-trade zone of 5,000 acres, access to three class-one railroad freight lines, one interstate highway, and a location a few miles from the nation's second-largest inland port. The airport also boasts an extensive shopping experience through its AirMall, which opened in 1992 along with the new airport. AirMall in Pittsburgh was the largest airport shopping complex in the United States at the time.
The AirMall, operated by Fraport, is located within the airport's airside terminal, mostly in the \"Center Core\" area, with some shops and restaurants extending into the concourses. The AirMall was one of the first of its kind in an airport and set a precedent for similar shopping experiences at other airports. The stores in the AirMall were the first in the US to price their merchandise the same as they would at a typical retail store, a policy later followed by some other US airports. Before 9/11, anyone could shop at the AirMall, but after 9/11, it was closed to non-travelers. In 2017, the AirMall reopened to non-travelers with a free access pass, but this access is currently suspended.
The AirMall continues to enhance the airport shopping experience, offering travellers the latest designer items and dining options. The AirMall at Pittsburgh International Airport remains the largest, with smaller AirMalls now operating at Baltimore/Washington International Airport, Boston's Logan International Airport, and Cleveland Hopkins International Airport.
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Lightning strike diversion
On January 1, 2025, an American Airlines flight from Columbus to Boston was forced to make an emergency landing at Pittsburgh International Airport after a suspected lightning strike. The aircraft, operated by Republic Airways, was diverted as a precaution after a possible lightning strike shortly after departing from John Glenn Columbus International Airport. The plane landed safely and without incident at Pittsburgh, and passengers were transferred to another plane to complete their journey to Boston.
Lightning strikes on aircraft are rare but not unheard of. According to the National Weather Service, commercial transport passenger planes are struck by lightning once or twice a year on average. When a plane is hit by lightning, a mandatory inspection for damage is required. In this instance, the aircraft was inspected by maintenance staff to determine if any damage had occurred.
Pittsburgh International Airport is located in Findlay Township and Moon Township, Pennsylvania, approximately 10 miles west of downtown Pittsburgh. The airport is the primary international airport serving the Greater Pittsburgh Region and surrounding areas in West Virginia and Ohio. It is a civil-military airport with four runways and covers 10,000 acres, making it the largest civil/public airport in Pennsylvania in terms of land area.
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Frequently asked questions
US Airways Flight 427 was a scheduled flight from Chicago's O'Hare International Airport to Palm Beach International Airport, Florida, with a stopover at Pittsburgh International Airport. On September 8, 1994, the Boeing 737 crashed in Hopewell Township, Pennsylvania, while approaching Runway 28R. The probable cause was a malfunction of the aircraft's rudder, causing it to enter an aerodynamic stall from which the pilots were unable to recover.
As Flight 427 approached Pittsburgh, it entered the wake turbulence of Delta Air Lines Flight 1083, which was about 4.1 miles ahead. The autopilot disconnected, and despite the pilots' attempts to counter the sharp turn and rising G-forces, the aircraft continued to roll while pitched nose-down. The plane slammed into the ground and exploded, killing all 131 people on board.
The crash of US Airways Flight 427 was the second-deadliest accident involving a Boeing 737 at the time and the seventh-deadliest aviation disaster in the history of the United States. It was also US Airways' fifth crash in the period from 1989 to 1994, contributing to the financial crisis the airline was experiencing. The Commonwealth of Pennsylvania spent approximately $500,000 on recovery and cleanup efforts.
In January 2025, an American Airlines flight from Columbus to Boston was diverted to Pittsburgh International Airport after possibly being hit by lightning. The plane landed safely, and passengers were transferred to another plane to complete their journey.
