# Accident 20170201000129A: S C Aerostar S A YAK-52, St Elmo, AL, February 1, 2017

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: February 1, 2017, 17:15 local time
- Place: St Elmo, AL
- Airport: St Elmo
- Damage: Substantial damage
- Phase of flight: Takeoff: Climb Out
- Operating rules: General operating rules (Part 91)
- Location: 30.5019° N, 88.2750° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=30.5019&lon=-88.2750&mi=10
- Aircraft: N624PT, registered now (https://openairdocs.org/aircraft/N624PT) (OpenAirDocs)
- Registry model: S C Aerostar S A YAK-52 (registry code 1140000, https://openairdocs.org/model/s-c-aerostar-s-a-yak-52) (OpenAirDocs)
- Registry engine: Amateur-built UNKNOWN ENG (registry code 99999, https://openairdocs.org/engine/amateur-built-unknown-eng) (OpenAirDocs)
- Reported make and model: S C AEROSTAR S A YAK-52
- Reported engine: AMA/EXPR UNKNOWN ENG
- People aboard: 1
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Private pilot
- Pilot flight hours: 537 total, 515 in this make and model, 10 in the last 90 days
- NTSB investigation: [NTSB ERA17LA105](https://openairdocs.org/ntsb/ERA17LA105) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20170201000129A

## Narrative

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

ON 2/1/17 AT APPROXIMATELY 1715HRS THE AIRCRAFT DEPARTED RUNWAY 24 AT ST ELMO, AL (2R5) AND MADE A LEFT TURN AT 1500 FT. THE SYSTEM AIR PRESSURE DROPPED TO 1.5 BAR FROM 2.5 BAR. THE PILOT SLOWED THE AIRCRAFT AND DROPPED THE GEAR AT THE APPROPRIATE SPEED. THE RIGHT MAIN LANDING GEAR REMAINED UP AND LOCKED. HE INITIATED THE EMERGENCY PROCEDURES FOR GEAR EXTENSION AND THE RT MLG STAYED UP AND LOCKED. THE PILOT THEN CLIMBED AND PERFORMED POSITIVE AND NEGATIVE G MANEUVERS AT 1500 FT WITHOUT SUCCESS. HE OPENED HIS CANOPY AND PERFORMED A SLIGHTLY FLATTER APPROACH WITH THE FLAPS UP. WHEN LANDING WAS ASSURED, HE TURNED OFF THE MAGS AND TOUCHED DOWN. THE RT WING DIDN'T TOUCH THE GROUND FOR 1000 FT. THE WING TOUCHED THE GROUND WITH THE PILOT LOSING SOME DIRECTIONAL CONTROL AND THE AIRCRAFT CAME TO REST AFTER A FEW HUNDRED FEET IN THE GRASS. NO INJURIES WITH DAMAGE TO THE RT WING, AND WING TIP. THE RIGHT AILERON AFT EDGE SUSTAINED STRUCTURAL DAMAGE, WHICH REQUIRES THE ENTIRE AILERON TO BE REPLACED. THE GEAR WAS MANUALLY UNLOCKED AND THE AIRCRAFT WAS TOWED TO A HANGAR.

## 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 ERA17LA105](https://openairdocs.org/ntsb/ERA17LA105), Feb 1, 2017: S C Aerostar S A YAK 52 (N624PT), St. Elmo, AL, substantial damage. Probable cause: The failure of the right main landing gear uplock actuator due to corrosion.

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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