# Accident 19911020047179A: Piper PA28R201T, Monticello, UT, October 20, 1991

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: October 20, 1991, 12:00 local time
- Place: Monticello, UT
- Airport: San Juan County Airport
- Damage: Substantial damage
- Phase of flight: Fcd/Prec Ldg From Cruise
- Operating rules: General operating rules (Part 91)
- Location: 37.9801° N, 109.2901° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=37.9801&lon=-109.2901&mi=10
- Aircraft: N1087H, a cancelled registration (https://openairdocs.org/deregistered/N1087H-2003-12-08) (OpenAirDocs)
- Registry model: Piper PA-28R-201T (registry code 7102813, https://openairdocs.org/model/piper-pa-28r-201t) (OpenAirDocs)
- Reported make and model: PIPER PA28R201T
- Reported engine: CONT TSIO360FB
- People aboard: 4
- Fatal injuries: 0
- Pilot flight hours: 1,179 total, 166 in this make and model, 52 in the last 90 days
- NTSB investigation: [NTSB SEA92LA014](https://openairdocs.org/ntsb/SEA92LA014) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19911020047179A

## Narrative

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

ENGINE THREW A ROD AFTER DETONATION BURNED HOLE IN PISTON. CRASH LANDED. MAGNETO BAD SHAPE CONTRIBUTED DETONATION.

## 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 SEA92LA014](https://openairdocs.org/ntsb/SEA92LA014), Oct 20, 1991: Piper PA-28R-201T (N1087H), Monticello, UT, substantial damage. Probable cause: INADEQUATE MAINTENANCE/OVERHAUL OF THE ENGINE, AND SUBSEQUENT FAILURE OF THE #5 PISTON (HOLE BURNED IN PISTON), DUE TO PRE-IGNITION AND/OR DETONATION. ROUGH/UNEVEN TERRAIN IN THE EMERGENCY LANDING…

## Other reports on N1087H (1)

Matched to the same aircraft by N-number and date.

- [Accident 19811203078469A](https://openairdocs.org/incident/19811203078469A), Dec 3, 1981: Piper PA28R201T (N1087H), Syracuse, NY, Substantial damage. Low battery. Hand turned prop to position starter. Engine started. Unchocked airplane, ran into tower building.

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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