# Accident 19990712039149A: Cessna 172H, Falmouth, KY, July 12, 1999

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 12, 1999, 12:25 local time
- Place: Falmouth, KY
- Airport: Gene Snyder Airport
- Damage: Substantial damage
- Phase of flight: Fcd/Prec Ldg From Cruise
- Operating rules: General operating rules (Part 91)
- Location: 38.6709° N, 84.3293° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=38.6709&lon=-84.3293&mi=10
- Aircraft: N3213L, a cancelled registration (https://openairdocs.org/deregistered/N3213L-2000-05-01) (OpenAirDocs)
- Registry model: Cessna 172H (registry code 2072424, https://openairdocs.org/model/cessna-172h) (OpenAirDocs)
- Reported make and model: CESSNA 172H
- Fatal injuries: 0
- Pilot flight hours: 1,399 total, 849 in this make and model, 44 in the last 90 days
- NTSB investigation: [NTSB NYC99LA173](https://openairdocs.org/ntsb/NYC99LA173) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19990712039149A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(.4)ON THE DAY OF THE ACCIDENT, MAINTENANCE WAS PREFORMED ON THE NUMBER ONE CYLINDER TO DISLODGE A STUCK VALVE. THE PILOT THEN REFUELED THE AIRPLANE AND TAXIED FOR DEPARTURE.  ONCE AIRBORNE, THE PILOT CLIMBED TO A CRUISE ALTITUDE OF 3,500 FEET MSL WITHOUT DIFFICULTY.  APPROXIMATELY 45 MINUTES INTO THE FLIGHT, THE ENGINE STARTED RUNNING ROUGH.  THE PILOT DIVERTED, BUT BEFORE HE COULD COMPLETE A SUCCESSFUL PRECAUTIONARY LANDING, THERE WAS A TOTAL LOSS OF ENGINE POWER.  THE AIRPLANE CRASHED INTO TREES.  PRIOR TO THE ENGINE RUNNING 'ROUGH', EGT WAS INDICATING 'NORMAL.'  AFTER THE ENGINE STARTED RUNNING 'ROUGH', THE EGT DROPPED TO BELOW 'NORMAL.'  THE EGT SENSOR WAS LOCATED ON THE NUMBER ONE CYLINDER.  NO ANOMALIES WITH THE ENGINE WERE FOUND AFTER THE ACCIDENT EXCEPT FOR A BROKEN INTAKE VALVE ROCKER-ARM ON THE NUMBER ONE CYLINDER.  EXAMINATION OF THE ROCKER-ARM REVEALED NO EVIDENCE OF FATIGUE OR ANY OTHER FORM OF PROGRESSIVE CRACK GROWTH.                           (-23) NO NARRATIVE

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB NYC99LA173](https://openairdocs.org/ntsb/NYC99LA173), Jul 12, 1999: Cessna 172H (N3213L), Falmouth, KY, substantial damage. Probable cause: A stuck intake-valve on the number one cylinder which resulted in a loss of engine power.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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