# NTSB FTW88LA138: Beech V35B, N771RB, Sayre, OK, July 22, 1988

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: July 22, 1988, 11:30 local (16:30 UTC)
- Place: Sayre, OK
- Coordinates: 35.29087, -99.629379 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=35.2909&lon=-99.6294&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report January 4, 1990
- Report: Approved by Office Director
- NTSB case key (mKey): 22665
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW88LA138
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/22665/pdf
- Page: https://openairdocs.org/ntsb/FTW88LA138

## Sequence of events

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

- Loss of engine power, takeoff - initial climb
  - powerplant - undetermined (cause)
- Forced landing, descent - emergency
- On ground/water encounter with terrain/water, landing - roll
  - compensation for wind conditions - inadequate, pilot in command (cause)
  - terrain condition - ditch (contributing factor)

## Analysis

THE PILOT SAID THAT SHORTLY AFTER TAKEOFF, AT 200 FEET AGL, THE ENGINE QUIT. HE TRIED TO LAND ON THE REMAINING RUNWAY BUT THE AIRPLANE WENT OFF LEFT SIDE, THEN THROUGH A DITCH. NO PROBLEMS COULD BE FOUND TO CAUSE THE LOSS OF ENGINE POWER. THE ENGINE WAS LATER RUN IN A TEST CELL WITH AN FAA INSPECTOR MONITORING. WITH THE EXCEPTION OF AN RPM DROP DUE TO DAMAGE OF AN IGNITION LEAD, THE ENGINE RUN WAS NORMAL. THE PILOT REPORTED THAT THE CROSSWIND CAUSED HIM TO GO OFF THE SIDE OF THE RUNWAY.

## Aircraft

- Registration: [N771RB](https://openairdocs.org/deregistered/N771RB-1989-06-09), registration cancelled 1989-06-09, S/N D8070 (OpenAirDocs)
- Reported make and model: BEECH V35B
- Registry model: [Beech V35](https://openairdocs.org/model/beech-v35) (registry code 1151538) (OpenAirDocs)
- Category: Airplane
- Serial number: D-8070
- Engines: CONTINENTAL IO-520-BA 285 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Irvin D. Pense
- Registered owner: Pense, Irwin D.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, September 1, 1987, 103 hours before
- Departed: OK23
- Destination: RVS, JENKS, OK
- Airport: OK23, Sayre Municipal, runway 17, 4,280 × 150 ft, concrete

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 50; private; airplane ratings: single-engine sea, single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 4,000 total, 500 in this make and model, 4,000 as pilot in command, 10 in the last 90 days, 4 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 235° at 18 knots
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 88 °F

## 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 19880722027769A](https://openairdocs.org/incident/19880722027769A), Jul 22, 1988: Beech V35B, Sayre Muni, OK, Substantial damage. Pilot reported engine quit on takeoff. Aborted, went off side of runway and hit a ditch.

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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