ASN Wikibase Occurrence # 367299
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| Date: | Thursday 15 March 1990 |
| Time: | 22:45 LT |
| Type: |  Learjet 24 |
| Owner/operator: | Suncoast Air Charter & Maint. |
| Registration: | N100VQ |
| MSN: | 140 |
| Total airframe hrs: | 10014 hours |
| Engine model: | GE CJ610-4 |
| Fatalities: | Fatalities: 0 / Occupants: 4 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Anderson, SC -
 United States of America
|
| Phase: | En route |
| Nature: | Unknown |
| Departure airport: | Columbus, OH (KOSU) |
| Tampa, FL (KTPA) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
WHILE CRUISING AT 42,000 FEET, THE PILOT ATTEMPTED TO ADUST HIS MAP LIGHT WHEN THE CIRCUIT BREAKER POPPED. WHEN THE COPILOT RESET THE BREAKER A FIRE IGNITED AT THE OXYGEN PANEL. THE BLOWTORCH EFFECT CAUSED EXTENSIVE DAMAGE TO THE LEFT INTERIOR AT THE PILOT'S STATION. TWO PASSENGERS WERE HOSPITALIZED FOR SMOKE INHALATION. EXAMINATION OF THE DAMAGED AREA DISCLOSED THAT A WIRE FROM THE LIGHT ASSEMBLY ARCED AND CONTACTED AN OXYGEN SUPPLY LINE. FURTHER EXAMINATION ALSO DISCLOSED LOOSE OXYGEN LINES ADJACENT TO THE ARCING. SUBSEQUENT TO THE MISHAP, LEARJET DEVELOPED A PROTECTION KIT TO PREVENT CONTACT BETWEEN THE OXYGEN LINES AND ELECTRICAL COMPONENTS.
Probable Cause: ELECTRICAL ARCING WHICH RESULTED FROM A SHORT IN THE PILOT'S MAP LIGHT CIRCUIT; A CHAFTED WIRE CONTACTED THE OXYGEN SUPPLY LINE AT THE OXYGEN CONTROL PANEL IN THE COCKPIT. A FACTOR IN THE ACCIDENT WAS THE INADEQUATE DESIGN OF THE OXYGEN PANEL PLUMBING AND ELECTRICAL WIRING FOR THE PILOT'S MAP LIGHT WHICH ALLOWED CONTACT BETWEEN THE TWO SYSTEMS.
Accident investigation:
 |
|
Sources:
NTSB ATL90LA080
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 22-Mar-2024 12:51 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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