NTSB FTW88IA147 — 1988-08-10 · OKLAHOMA CITY, Oklahoma, United States

Current FAA registration · N3589B

Make / Model: PIPER PA-31-350
Year of manufacture: 1980 · 8 years old at event
Engine: LYCOMING TI0-540 SER (310 hp)
Seats / Engines: 8 seats · 2 engines
Last airworthiness date: 19800417
ADS-B equipped: Yes — Mode-S A4061A

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N3589B Piper PA-31-350 None

Factual narrative

THE FLIGHT WAS AN INSTRUCTIONAL FLIGHT WITH THREE PILOTS ONBOARD. THE AIRPLANE DEPARTED ON RUNWAY 17R AND WAS 300 TO 400 FEET AGL WHEN ONE BLADE OF THE RIGHT PROPELLER SEPARATED FROM THE HUB, FOLLOWED BY THE REMAINDER OF THE PROPELLER. THE PIC MADE AN IMMEDIATE RIGHT TURN AND ENTERED DOWNWIND FOR RUNWAY 12, AND THEN LANDED ON THAT RUNWAY. EXAMINATION REVEALED FRACTURE RESULTED FROM FATIGUE CRACKS THAT INITIATED AT THE GREASE HOLES IN THE FORWARD HALF OF THE PROPELLER HUB. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1988_FTW88IA147.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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