# NTSB FTW91DPJ01: Piper PA-25, N9845P, Spiro, OK, March 26, 1991

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: March 26, 1991, 17:00 local (23:00 UTC)
- Place: Spiro, OK
- Coordinates: 35.240062, -94.610336 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=35.2401&lon=-94.6103&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report March 31, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 23211
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW91DPJ01
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/23211/pdf
- Page: https://openairdocs.org/ntsb/FTW91DPJ01

## Probable cause

A POWER LOSS FOR UNDETERMINED REASONS. A FACTOR WAS THE LACK OF SUITABLE TERRAIN FOR THE FORCED LANDING.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power, takeoff - initial climb
  - reason for occurrence undetermined (cause)
- Forced landing, descent - emergency
- In flight collision with terrain/water, landing
  - terrain condition - none suitable (contributing factor)
  - object - fence
- Nose over, landing

## Analysis

SHORTLY AFTER TAKEOFF THE PILOT EXPERIENCED A TOTAL LOSS OF ENGINE POWER FOR UNDETERMINED REASONS. DURING THE FORCED LANDING, GROUND CONTACT OCCURRED ON A GENTLE UPSLOPE WITH WINGS LEVEL AND NOSE SLIGHTLY LOW. ABOUT 20 FEET AFTER INITIAL CONTACT THE AIRPLANE SLID INTO TWO FENCE POSTS AND WIRE FENCING MATERIAL, CAUSING THE AIRPLANE TO NOSE OVER. POST IMPACT FIRE CONSUMED THE WRECKAGE.

## Aircraft

- Registration: [N9845P](https://openairdocs.org/deregistered/N9845P-2014-12-01), registration cancelled 2014-12-01, S/N 25-7556164, built 1975 (OpenAirDocs)
- Reported make and model: PIPER PA-25
- Registry model: [Piper PA-25-235](https://openairdocs.org/model/piper-pa-25-235) (registry code 7102504) (OpenAirDocs)
- Registry engine: [Lycoming 0-540 series](https://openairdocs.org/engine/lycoming-0-540-series) (registry code 41532, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 25-7556164
- Airframe hours: 2738
- Engines: LYCOMING O-540-B2C5 235 horsepower reciprocating
- Damage: Destroyed
- Fire: On-Ground
- Flight: Aerial application, Part 137
- Operator: Double "S" Flying, Inc.
- Registered owner: Double "S" Flying, Inc.
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, March 21, 1991

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 46; commercial; airplane ratings: single-engine land, multi-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: front; flight hours: 6,900 total, 26 in this make and model, 6,850 as pilot in command, 40 in the last 90 days, 25 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 190° at 9 knots
- Visibility: 7 statute miles
- Lowest ceiling: 4,000 ft overcast
- Temperature: 77 °F, dew point 63 °F
- Altimeter: 29.00 inHg

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19910326007739A](https://openairdocs.org/incident/19910326007739A), Mar 26, 1991: Piper PA25235, Spiro, OK, Destroyed. Crashed and burned off departure end of Private strip. Prop indicates not turning at impact.

## Other investigations on N9845P (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 FTW79DPG65](https://openairdocs.org/ntsb/FTW79DPG65), Jul 13, 1979: Piper PA-25 (N9845P), Holly Grove, AR, destroyed

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.

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