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Accidents · NTSB NYC88FA050 · Preliminary: the investigation is not finished

Boeing 737-2B7 accident near Deptford, New Jersey, December 5, 1987

On December 5, 1987 at about 2:55 pm local time, a Boeing 737-2B7, registered N319AU, was substantially damaged in an accident near Deptford, New Jersey (Philadelphia Intl airport). It was a flight of an unrecorded kind under scheduled airline rules (Part 121). No one was hurt; 67 people were on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
December 5, 1987 · about 2:55 pm local time
Place
Deptford, New Jersey · Philadelphia Intl
Type
Accident
Injuries
No one was hurt; 67 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Boeing 737-2B7 · all 737-2B7s on the register
Registration
N319AU · registry record · serial 22887
Damage
Substantial damage
Flight
Flight of an unrecorded kind · scheduled airline rules (Part 121)

The NTSB's narrative final · quoted from the NTSB record

DRG TKOF, AS USAIR FLT 224 WAS CLBG THRU 4000', THE ACFT YAWED/ROLLED RGT. SIMULTANEOUSLY, THE CREW NOTICED THE #2 THROTTLE SLAM/LOCK TO THE IDLE PSN & A CONTINUOUS AIRFRAME BUFFET BEGAN. SOON THEREAFTER, THE #2 ENG SEPD FM THE ACFT & THE BUFFET STOPPED. THE ENG IMPACTED IN AN OPEN FLD, 6 MI FM THE ARPT. JUST BFR IT SEPD, A PAX SAW THE AFT END OF THE #2 ENG MOMENTARILY DROOP ABOUT 30 DEG. AFTER ENG SEPN, THE 'B' HYD SYS LOST PRES & THE TE FLAPS WOULD ONLY EXTD 10 DEG. THE ACFT WAS LNDD SAFELY AFTER AN EMERG GEAR EXTN & DIFFERENTIAL BRAKING WAS USED FOR STEERING. AN EXAM REVEALED THE AFT MOUNT CONE BOLT FOR THE #2 ENG HAD FAILED FM FATIGUE THRU THE THREAD RELIEF UNDERCUT RADIUS. FATIGUE CRACKS HAD INITIATED ON DIAMETRICALLY OPPOSITE SIDES OF THE RADIUS. SUBSEQUENTLY, THE FWD MOUNT CONE BOLTS & SECONDARY SUPPORT CABLE FAILED FROM OVERLOAD.

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

Pilot

  • Certificate: airline transport pilot
  • Ratings: multi-engine land; single-engine land; instructor: airplane multi-engine; instructor: airplane single-engine; instructor: instrument airplane; instrument: airplane
  • Flight time: 12,000 hours in all; 956 in this make and model; 200 in the last 90 days; 70 in the last 30 days; 8,633 as pilot in command; 2,014 on instruments
  • Medical certificate: Class 1 (valid medical--no waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 12,845 hours
  • Last inspection: inspection type not recorded, December 5, 1987; 2 hours since
  • Maximum gross weight: 117,000 lb
  • Seats: 120
  • Landing gear: retractable
  • Engine: P&W JT8D-15A (turbofan); 0 hours total

The flight

  • Departed from: PHL at 2:45 pm
  • Destination: BOS Boston MA
  • Flight plan: IFR
  • Runway 27L, 10,499 ft by 200 ft
  • A second pilot was aboard

Weather at the time

  • Light: daylight
  • Wind: from 320° at 15 knots
  • Visibility: 15 statute miles
  • Sky: broken clouds at 20,000 ft; scat at 3,500 ft
  • Temperature: 36°F (2°C), dew point 19°F (-7°C)
  • Altimeter: 29.00 inHg
  • Observation at 2:52 pm from PHL

Injuries

FatalSeriousMinorNone
Crew5
Passengers62

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.