Cessna 152 accident near Gratis, Ohio, April 15, 1989
On April 15, 1989 at about 9:00 pm local time, a Cessna 152, registered N757HJ, was substantially damaged in an accident near Gratis, Ohio. It was an instructional flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
THE FOREIGN MATERIAL (BIRD NEST) IN THE ENGINE COMPARTMENT, AND FAILURE OF THE DUAL STUDENT OR INSTRUCTOR PILOT (CFI) TO IDENTIFY AND REMOVE IT DURING THEIR PREFLIGHT INSPECTION OF THE AIRCRAFT. SOFT TERRAIN IN THE EMERGENCY LANDING AREA AND SMOKE FROM THE ENGINE COMPARTMENT WERE FACTORS.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- April 15, 1989 · about 9:00 pm local time
- Place
- Gratis, Ohio · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna 152 · all 152s on the register
- Registration
- N757HJ · no longer on the register · serial 15279750
- Damage
- Substantial damage
- Flight
- Instructional flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE INSTRUCTOR PLT (CFI) RPRTD HE ELECTED TO MAKE A PRECAUTIONARY LANDING AFTER HE SMELLED SMOKE IN THE COCKPIT. DRG THE LANDING, THE ACFT ENCOUNTERED SOFT DIRT & NOSED OVER, DAMAGING THE VERTICAL STABILIZER. AN EXAM OF THE ENG REVEALED THERE WAS A BIRD'S NEST IN THE VICINITY OF THE #2 & #3 CYLINDERS. NO EVIDENCE OF ANY OTHER POSSIBLE SOURCE OF SMOKE OR FIRE WAS FOUND. ACCORDING TO AN FAA INSPECTOR, WHO EXAMINED THE ACFT, THE NEST WAS PARTIALLY HIDDEN, BUT IT COULD HAVE BEEN SEEN DRG A PREFLIGHT INSPECTION WITH ADEQUATE LIGHTING. BOTH THE CFI & STUDENT HAD PREFLIGHTED THE ACFT, BUT NEITHER SAW THE BIRD'S NEST.
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: flight instructor, commercial pilot
- Ratings: multi-engine land; single-engine land; instructor: airplane single-engine; instrument: airplane
- Flight time: 2,280 hours in all
- Medical certificate: Class 2 (valid medical--no waivers/lim.)
- Seat: unk
The aircraft
- Airframe total time: 2,793 hours
- Last inspection: annual inspection, June 24, 1988; 51 hours since
- Maximum gross weight: 1,650 lb
- Seats: 2
- Landing gear: fixed
- Engine: Lycoming O-235-L2C (piston); 0 hours total
- Operator: Mullins Aviation, INC.
The flight
- Departed from: I44 Dayton OH at 8:25 pm
- Flight plan: none
- Runway 0
- A second pilot was aboard
Weather at the time
- Light: daylight
- Visibility: 7 statute miles
- Sky: broken clouds at 4,000 ft; not recorded
- Temperature: 61°F (16°C), dew point 41°F (5°C)
- Altimeter: 29.00 inHg
- Observation at 8:53 pm from DAY
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 2 |
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.