20170201000129A

Accident · Substantial damage

FAA accident report · S C Aerostar S A YAK-52 · St Elmo, AL · February 1, 2017

Date
February 1, 2017 · 17:15 local
Place
St Elmo, AL
Airport
St Elmo
Phase of flight
Takeoff: Climb Out
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N624PT
NTSB investigation
NTSBERA17LA105
Reported as
S C Aerostar S A YAK-52
Reported engine
Amateur-built UNKNOWN ENG
People aboard
1
Fatal injuries
0
Other injuries
0
Pilot’s certificate
Private pilot
Pilot’s flight hours
537 total515 in this make and model10 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry 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.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

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.

As the FAA filed it

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.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.