Bellanca 7GCBC accident near Livermore Falls, Maine, June 18, 1988
On June 18, 1988 at about 9:18 pm local time, a Bellanca 7GCBC, registered N4129Y, was destroyed in an accident near Livermore Falls, Maine. It was a personal flight under general aviation rules (Part 91). 2 people were killed. 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
- June 18, 1988 · about 9:18 pm local time
- Place
- Livermore Falls, Maine
- Type
- Accident
- Injuries
- 2 people were killed.
- Weather
- visual conditions (good weather)
- Aircraft
- Bellanca 7GCBC · all 7GCBCs on the register
- Registration
- N4129Y · no longer on the register · serial 951-76
- Damage
- Destroyed
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE CITABRIA 7GCBC WAS OBSERVED TO MAKE A LOOP. THE LEFT WING BENT UPWARD AT THE STRUT ATTACH POINT AS THE AIRCRAFT WAS AT THE BOTTOM OF THE LOOP AND RECOVERING TO LEVEL FLIGHT. THE AIRCRAFT WAS THEN OBSERVED TO DESCEND IN A RIGHT SPIRAL AND NOT RECOVER PRIOR TO CONTACT WITH THE GROUND. IMPROPER LEFT FWD WING SPAR MANUFACTURING WAS FOUND. NO PROBLEMS WERE NOTED ON THE LEFT REAR WING SPAR. THE FWD WING SPAR FAILED WITH TENSION ON THE TOP AND COMPRESSION ON THE BOTTOM. THE REAR WING SPAR HAD TENSION ON THE BOTTOM AND COMPRESSION ON THE TOP. THE LEFT WING OUTBOARD OF THE STRUT ATTACH POINT SEPARATED FROM THE AIRCRAFT PRIOR TO IMPACT. THE LEFT AILERON WAS BENT UPWARD 90 DEGREES AT THE MIDDLE HINGE POINT WHICH CORRESPONDS TO THE STRUT ATTACH POINT. INVESTIGATION REVEALED THAT THE SLOPE OF THE GRAIN ON THE FWD WING SPAR EXCEEDED SPECIFICATIONS. ALSO TWO AREAS OF POOR BONDING WERE FOUND. THE AIRCRAFT LOG BOOKS WERE NOT FOUND.
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: private
- Ratings: single-engine land; single-engine sea
- Flight time: 2,500 hours in all
- Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
- Seat: frt
The aircraft
- Last inspection: inspection type not recorded
- Maximum gross weight: 1,650 lb
- Seats: 2
- Landing gear: fixed
- Engine: Lycoming O-320-A2D (piston); 0 hours total
The flight
- Departed from: B10 Livemore Falls ME at 9:00 pm
- Flight plan: none
- Runway 0
- A second pilot was aboard
Weather at the time
- Light: daylight
- Wind: from 230° at 8 knots
- Visibility: 15 statute miles
- Sky: scat at 4,000 ft
- Temperature: 81°F (27°C), dew point 46°F (8°C)
- Altimeter: 30.00 inHg
- Observation at 8:50 pm from AUG, 14 miles away
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| Passengers | 1 |
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.