ASN Wikibase Occurrence # 39139
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Sunday 17 June 1990 |
| Time: | 13:44 |
| Type: | Sukhoi Su-26MX |
| Owner/operator: | private |
| Registration: | N26TJ |
| MSN: | 51-01 |
| Engine model: | Vendeneyev M-14 |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Oklahoma City, OK -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Unknown |
| Departure airport: | (OKC) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PLT OF THE RUSSIAN BUILT ACFT WAS PARTICIPATING IN AN AEROBATIC SHOW, OF WHICH, HE WAS THE DIRECTOR. HE HAD RPRTD HE WAS FATIGUED, THAT HE HAD BEEN UNDER CONSIDERABLE PRESSURE & THAT HE MIGHT HAVE TO STOP FLYING IN THE AIRSHOW. DRG THE AIRSHOW, A VERTICAL TORQUE ROLL & TAIL SLIDE WERE PERFORMED. ANOTHER TORQUE ROLL & TAIL SLID WERE THEN MADE THAT RESULTED IN AN INVERTED RECOVERY. FINALLY, ANOTHER TORQUE ROLL & TAIL SLIDE WERE PERFORMED THAT EVOLVED IN A 1-1/2 TURN SPIN. SUBSEQUENTLY, THE ACFT INPACTED THE GND IN ABOUT A 65 DEG DSCNT. NO PREIMPACT PART FAILURE OR MALFUNCTION WAS FND THAT WOULD HAVE RESULTED IN THE ACDNT. THE PLT HAD ENGAGED THE SMOKE GENERATOR FOR THE LAST MNVR & SMOKE ENGULFED THE ACFT AS THE TAIL SLIDE BGN. THERE WAS EVIDENCE THE PLT WAS OPERG THE ELEVATOR control TO RECOVER BEFORE IMPACT. HE HAD BEEN TAKING A BETA BLOCKER (PROPRANOLOL), WHICH HAD BEEN PRESCRIBED WITH THE WARNING OF NOT TO USE BEFORE flight. A BLOOD TEST SHOWED 0.15 MCG/ML OF PROPRANOLOL, BUT NO PHYSICAL IMPAIRMENT WAS VERIFIED. DENSITY ALT WAS ABOUT 3800 FT. CAUSE: FAILURE OF THE PILOT TO RECOVER FROM THE AEROBATIC MANEUVER AND SUBSEQUENT STALL/SPIN, DUE TO INADEQUATE ALTITUDE. FATIGUE MAY HAVE BEEN A RELATED FACTOR.
Sources:
NTSB: https://www.ntsb.gov/ntsb/brief.asp?ev_id=20001212X23417
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation