Event MIA86MA013

1985-10-19 TAMPA, Florida, United States Airport · TPA None 1 aircraft Status: Completed

Registry · N412EA

FAA Aircraft Registry record.

Make / Model

PIPISTREL D O O ALPHA TRAINER

Year of manufacture

2025

Engine

ROTAX 912UL2 (80 hp)

Seats / Engines

2 seats · 1 engine

Last airworthiness date

20250930

ADS-B equipped

Yes — Mode-S A4DBF3

Registrant of record

MAVERICK PILOT DEVELOPMENT LLC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N412EA McDonnell Douglas DC-9-51 None

Factual narrative

SHORTLY AFTER LIFT-OFF, THE FLT CREW HEARD A LOUD NOISE (SIMILAR, BUT LOUDER THAN A TIRE BLOW-OUT) AS THE #1 ENG FAILED.THEY SECURED THE #1 ENG, REMAINED IN THE TRAFFIC PATTERN & LANDED ON THE SAME RWY. AFTER LANDING, AN EXAM REVEALED THE COMBUSTION CHAMBER OUTER CASE, PN 616315, HAD FAILED FROM LOW CYCLE FATIGUE. THE FATIGUE HAD PROPAGATED FROM A BOLT HOLEON THE REAR FLANGE & PROGRESSED FORWARD UNTIL IT REACHED A CRITICAL LENGTH, THEN THE REMAINING FRACTURE WAS FROM TENSILE OVERLOAD. NICKEL-CADMIUM PLATING WAS FOUND IN THE FATIGUE CRACKED AREA. THE CASE WAS LAST REPLATED AFTER IT WAS MODIFIED, APRX 5152 FLT HRS PRIOR TO THE ACDNT. PRATT & WHITNEY ENGINE REPAIR MANUAL 72-42-11 PROHIBITS THE NICKEL-CADMIUM PLATING OF THE FRONT & REAR CASE FLANGE BOLT HOLES. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1985_MIA86MA013.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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