# NTSB FTW87LA117: Cessna 152, N4922P, Okmulgee, OK, May 10, 1987

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 10, 1987, 11:00 local (16:00 UTC)
- Place: Okmulgee, OK
- Coordinates: 35.62994, -95.950912 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=35.6299&lon=-95.9509&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 6, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 22363
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW87LA117
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/22363/pdf
- Page: https://openairdocs.org/ntsb/FTW87LA117

## Sequence of events

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

- Nose gear collapsed, landing - roll
  - landing gear,nose gear assembly - undetermined (cause)
  - touch-and-go - attempted, pilot in command (contributing factor)
- On ground/water encounter with terrain/water, landing - roll

## Analysis

DURING A NORMAL UNEVENTFUL APPROACH, AND UPON TOUCHDOWN, THE AIRCRAFT'S NOSE GEAR COLLAPSED FOR UNDETERMINED REASONS. THE AIRCRAFT SLID TO A STOP CAUSING SUBSTANTIAL DAMAGE.

## Aircraft

- Registration: [N4922P](https://openairdocs.org/deregistered/N4922P-2015-05-21), registration cancelled 2015-05-21, S/N 15284842, built 1981 (OpenAirDocs)
- Reported make and model: CESSNA 152
- Registry model: [Cessna 152](https://openairdocs.org/model/cessna-152) (registry code 2071835) (OpenAirDocs)
- Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Serial number: 15284842
- Airframe hours: 3970
- Engines: LYCOMING O-235-L2C 110 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Registered owner: Christiansen Aviation
- Airworthiness certificate: Standard, Utility
- Last inspection: 100 hour, October 16, 1986, 63 hours before
- Departed: RVS, RIVERSIDE, OK
- Destination: OKM, OKMULGEE, OK
- Airport: OKM, Okmulgee Mun., runway 17, 4,300 × 35 ft, concrete

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 51; student; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 61 total, 61 in this make and model, 23 as pilot in command, 23 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 170° at 11 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 75 °F, dew point 57 °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 19870510012889A](https://openairdocs.org/incident/19870510012889A), May 10, 1987: Cessna 152, Okmulgee, OK, Substantial damage. Nose gear collapsed on touchdown. Cause is undetermined. No landing gear defects noted.

## Other investigations on N4922P (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 ERA13LA379](https://openairdocs.org/ntsb/ERA13LA379), Aug 23, 2013: Cessna 152 (N4922P), Easton, MD, substantial damage. Probable cause: The use of an improper nose landing gear through bolt, which decreased the overall strength of the gear and resulted in overload failure during a hard landing. Contributing to the accident was the…

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.