ASN Wikibase Occurrence # 36883
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: | Thursday 9 June 1988 |
| Time: | 12:03 |
| Type: |  Cessna 421B |
| Owner/operator: | private |
| Registration: | N700SC |
| MSN: | 421B0910 |
| Year of manufacture: | 1975 |
| Total airframe hrs: | 3516 hours |
| Engine model: | CONTINENTAL GTSIO-520-H |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Knoxville, TN -
 United States of America
|
| Phase: | En route |
| Nature: | Executive |
| Departure airport: | Indianapolis, IN (IND) |
| Jacksonville, FL (JAX) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
DURING AN IFR FLT AT FL170, THE PLT RPTED AIRFRAME ICING AND REQUESTED A HIGHER ALT. THE PLT CLIMBED TO FL210 WHERE HE STARTED A DESCENT AND RPTED LOSS OF MANIFOLD PRESSURE IN THE LEFT ENGINE. THE PLT INDICATED THAT WX WAS IN HIS FLT PATH AND DESCENT WAS REQUIRED TO AVOID ICING. 90 SECONDS LATER THE PLT XMITTED '...LOSING IT...'. RADAR DATA INDICATED ACFT HAD AN INFLT BREAKUP AT APPROXIMATELY 17,000' MSL. THERE WAS NO EVIDENCE OF MECHANICAL OR STRUCTURAL MALFUNCTION PRIOR TO THE BREAKUP. THE ACFT DID NOT HAVE A COMPLETE CURRENT ANNUAL AND DE-ICE EQUIPMENT WAS INOP. THE PLT HAD NO ACTUAL INST EXPERIENCE AND WAS NOT CERTIFIED FOR MULTIENGINE IFR flight. THE PLT HAD A MEDICAL HISTORY OF ANXIETY ATTACKS AND HAD BEEN TAKING PRESCRIPTION MEDICATION, XANAX AND TOFRANIL, FOR APPROX THREE YEARS PRIOR TO THE ACCIDENT. THE BLOOD CONTAINED 1.2 MCG/ML OF IMIPRAMINE(TOFRANIL) AND 2.6 MCG/ML DESIPRAMINE(METABOLITE OF TOFRANIL). XANAX (ALPRAZOLAM) WAS NOT reported IN BLOOD TOX. THESE DRUGS HAVE BEEN KNOWN TO PRODUCE SIDE EFFECTS THAT INCLUDE POOR JUDGEMENT. CAUSE:
Sources:
NTSB: https://www.ntsb.gov/ntsb/brief.asp?ev_id=20001213X25855
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