ASN Wikibase Occurrence # 34627
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| Date: | Tuesday 13 January 1987 |
| Time: | 07:15 |
| Type: |  Cessna T210M |
| Owner/operator: | private |
| Registration: | N112DW |
| MSN: | 21061978 |
| Year of manufacture: | 1977 |
| Total airframe hrs: | 1032 hours |
| Engine model: | CONTINENTAL TSIO-520R |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Pacoima, CA -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | (WHP) |
| Lancaster, CA (WJE) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
DURING INITIAL CLIMB AFTER TAKEOFF THE AIRCRAFT EXPERIENCED A COMPLETE LOSS OF POWER. THE PILOT ATTEMPTED TO RETURN TO THE AIRPORT AND COLLIDED WITH A LARGE WAREHOUSE. THE AIRFRAME WAS TOTALLY CONSUMED IN THE POST CRASH FIRE. EXAMINATION OF THE ENGINE REVEALED THE SPARK PLUGS WERE EXCESSIVELY WORN WITH ELECTRODE GAPS MEASURED AT GREATER THAN .025 INCHES. MAXIMUM SERVICEABLE GAP FOR THE PLUGS IS .021 INCHES, WITH THE MOST DESIRED GAP RANGE FROM .016 TO .019. THE MAINTENANCERECORDS NOTED THAT THE LAST TIME NEW PLUGS WERE INSTALLED WAS IN NOVEMBER OF 1982, 493 HOURS PRIOR TO THE ACCIDENT. THE PLUGS WERE RECONDITIONED IN JULY OF 1984, 392 HOURS PRIOR TO THE ACCIDENT. THE PLUG MANUFACTURER INDICATES THAT GAPS IN EXCESS OF .025 REQUIRE EXCESSIVE VOLTAGE TO FIRE UNDER CYLINDER TEMPERATURE AND PRESSURE CONDITIONS AT TAKEOFF POWER. CAUSE:
Sources:
NTSB: https://www.ntsb.gov/ntsb/brief.asp?ev_id=20001213X30084
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
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