ASN Wikibase Occurrence # 42761
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| Date: | Saturday 24 June 1989 |
| Time: | 15:35 |
| Type: |  Beechcraft T-34A Mentor |
| Owner/operator: | Red Stevenson |
| Registration: | N34CJ |
| MSN: | CG-211 |
| Total airframe hrs: | 5550 hours |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Haskell, OK -
 United States of America
|
| Phase: | En route |
| Nature: | Unknown |
| Departure airport: | (00K7) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE AIRSPEED INDCR WAS MALFUNCTIONING ON A PREVIOUS flight. BFR TAKING OFF AGAIN, THE PLT WAS SEEN TO DISASSEMBLE THE PITOTTUBE AS IF THE REMOVE FOREIGN MATTER. ON THE NEXT FLT, HE BGN A HI SPD/LOW PASS over RWY 35. AT ABT MIDFIELD, THE ACFT ENTERED A CLIMB TO APRX 800 TO 1000 FT AGL. NR THE PEAK OF THE CLIMB, THERE WAS A REDUCTION OF PWR & THE ACFT MNVRD (TURNED LEFT, THEN RGT, AS IF TO ENTER A BASE TURN FOR RWY 17). THE LNDG GEAR WAS EXTDD AT ABT 300 TO 500 FT AGL, FLWD BY A TURN (SOUTH) TWD THE RWY. AFTER ABT 45 DEG OF TURN, THE ACFT ENTERED A STEEP DSCNT & CRASHED. AN EXAM REVEALED A RUBBER PITOT LINE, PN 35-324323, WAS DETERIORATED & LEAKED. NO OTR PREIMPACT PART FAILURE WAS FND. EXPERIMENTAL CATEGORYACFT WITH SVRL LIMITATIONS: FLTS RSTRD TO TX; EXHIBITION ONLY; PIC WAS REQUIRED TO HAVE AN INSTRUCTOR'S LOGBOOK ENDORSE-MENT OR LETTER OF AUTHORIZATION (LOA) TO OPER THE ACFT. NEITHER AN ENDORSEMENT NOR LOA WAS FND. PLT HAD ABT 1 HR IN T-34ACFT; CANNABINOIDS DETECTED IN PLT'S URINE, BUT NONE FND IN HIS BLOOD. ACFT WAS NOT EQUIPPED WITH STALL WARNING SYS. CAUSE: FAILURE OF THE PILOT TO MAINTAIN ADEQUATE AIRSPEED, WHICH RESULTED IN AN INADVERTENT STALL. FACTORS RELATED TO THE ACCIDENT WERE: A LEAK IN THE PITOT SYSTEM, FAILURE OF THE PILOT TO OBTAIN ADEQUATE MAINTENANCE/INSPECTION OF THE PITOT SYSTEM, AND HIS LACK OF FAMILIARITY WITH THE AIRCRAFT.
Sources:
http://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20001213X28568
ex.FA Chile/154.
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 28-Jun-2016 20:03 | TB | Updated [Aircraft type, Source] |
| 21-Dec-2016 19:24 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 07-Feb-2022 17:46 | A.J.Scholten | Updated [Source] |
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