Boeing 757-222 accident near San Fransico, California, June 12, 2011
On June 12, 2011, a Boeing 757-222, registered N571UA, was substantially damaged in an accident during pushback/tow (engine not oper) near San Fransico, California (San Francisco International airport). It was flown under scheduled airline rules (Part 121). No one was hurt; 190 people were on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The ramp personnel's failure to visually verify the position of the jetway before beginning the airplane pushback.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- June 12, 2011
- Place
- San Fransico, California · San Francisco International · map
- Type
- Accident · collision on the ground
- Injuries
- No one was hurt; 190 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Boeing 757-222 · all 757-222s on the register
- Registration
- N571UA · registry record · serial 26681
- Damage
- Substantial damage
- Flight
- Flight · scheduled airline rules (Part 121)
The NTSB's narrative final · quoted from the NTSB record
On June 16, 2011 at approximately 1758 pacific daylight time, United flight 818, a Boeing 757-200, registration N571UA, was substantially damaged during initial pushback from gate 73 at San Francisco International Airport (SFO), San Francisco, California. There were no injuries to the 188 passengers and crew onboard. The flight was a regularly scheduled domestic passenger flight from SFO to Chicago O'Hare International Airport, Chicago, Illinois. United representatives reported that normal passenger and crew boarding was accomplished using door 2L. The passenger loading bridge (PLB) operator stated she was in position at the loading bridge controls and was prepared to retract the bridge. She reported that the airplane door was closed and the loading bridge canopy was retracted. The PLB operator stated she was waiting for hand signal guidance from the ramp personnel to retract the bridge from the airplane. The PLB operator stated the signal to retract the bridge from the airplane was not received, however, the ramp personnel proceeded to push back the airplane. The ramp employee responsible for the airplane pushback reported that he heard the PLB bell ringing for about one minute, which he thought was enough time for the jetway to be cleared from the airplane. He reported that he then removed the chalks, received clearance from the flight crew, and then commenced to push back the airplane. As a result of the impact with the jetway, the airplane received a 38 inch x 8.5 inch hole in the fuselage between Fuselage Station (FS) 490 and FS 528 and stringer S-17L and S-18L resulting in damage to frame assemblies and stringers in this area.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
What happened, in order
- Ground handling event during pushback/tow (engine not oper) defining event
The NTSB's findings
- cause Aircraft › Aircraft handling/service › Towing and taxiing › (general) › Incorrect use/operation
Pilot
- Certificate: airline transport pilot, commercial pilot
- Ratings: multi-engine land; multi-engine sea; single-engine land; instrument: airplane
- Flight time: 13,678 hours in all; 2,949 in this make and model
- Last flight review: February 1, 2011
- Medical certificate: Class 1
- Seat: left
- Injury: no injuries
Co-pilot
- Certificate: airline transport pilot
- Ratings: multi-engine land; single-engine land; instrument: powered-lift
- Flight time: 4,907 hours in all; 3,574 in this make and model
- Last flight review: May 1, 2011
- Medical certificate: Class 1
- Seat: rgt
- Injury: no injuries
The aircraft
- Airframe total time: 61,787 hours
- Last inspection: continuous airworthiness programme, May 25, 2011
- Seats: 178
- Landing gear: retractable
- Engine 1: P & W PW2040 (turbojet); 0 hours total
- Engine 2: P & W PW2040 (turbojet); 0 hours total
- Operator: United Air Lines INC
The flight
- Departed from: KSFO San Fransico CA
- Destination: KORD Chicago IL
- Flight plan: IFR
- A second pilot was aboard
Weather at the time
- Light: daylight
- Wind: from 315° at 13 knots
- Visibility: 10 statute miles
- Temperature: 63°F (17°C), dew point 46°F (8°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Cabi | 6 | |||
| Flight crew | 2 | |||
| Passengers | 182 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.
