ASN Wikibase Occurrence # 43340
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| Date: | Tuesday 30 October 1990 |
| Time: | 08:05 |
| Type: |  Cessna 150G |
| Owner/operator: | Blue Max |
| Registration: | N3220J |
| MSN: | 15065920 |
| Total airframe hrs: | 4922 hours |
| Engine model: | CONTINENTAL O-200-A |
| Fatalities: | Fatalities: 1 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Marathon, FL -
 United States of America
|
| Phase: | En route |
| Nature: | Training |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
WHILE ON A X-WIND AFTER A TOUGH-&-GO LNDG, A PARTIAL LOSS OF ENG POWER OCCURRED. THE INSTRUCTOR (CFI) TOOK control & MNVRD THE ACFT TO LAND. THE ACFT WAS NOT ALIGNED WITH THE RWY, SO THE CFI ELECTED TO LAND IN A GRASS AREA. HE STATED THAT WHILE DSCNDG THRU ABOUT 100' AGL, 'THE YOKE FELL BACKWARD' INTO HIS LAP. HE BELIEVED THAT THE ELEVATOR CABLE HAD FAILED, WHICH ALLOWED THE ACFT TO CRASH. HOWEVER, ACCORDING TO WITNESSES, A STEEP TURN WAS MADE IN AN ATMT TO ALIGN THE ACFT FOR LANDING; THEN THE ACFT LEVELED OFF AT ABOUT 30' AGL & WAS AT A SLOW SPEED. THE ACFT THEN ENTERED A STEEP DSCNT & CRASHED. NO PREIMPACT MECHANICAL PROBLEM WAS FOUND WITH THE FLT control SYS. A METALLURGICAL EXAM SHOWED THAT THE ELEVATOR UP CABLE HAD FAILED UNDER A TENSILE LOAD WHILE BEING BENT AROUND AN EDGE OR CORNER. AN EXAM OF THE ENG REVEALED THAT THE CENTER ROCKER BOSS ON THE #3 CYLINDER HAD FAILED IN FATIGUE. THE FATIGUE HAD ORIGINATED WHERE NUMBERS WERE EMBOSSED INTO THE BOSS DRG MANUFACTURE. CAUSE: THE PILOT-IN-COMMAND'S FAILURE TO MAINTAIN AIRSPEED, WHILE ATTEMPTING TO MAKE A FORCED LANDING FOLLOWING A PARTIAL LOSS OF ENGINE POWER. FATIGUE FAILURE OF THE CENTER ROCKER BOSS ON THE #3 CYLINDER WAS A RELATED FACTOR.
Sources:
NTSB: http://www.ntsb.gov/ntsb/brief.asp?ev_id=20001212X24502
History of this aircraft
Other occurrences involving this aircraft
| 12 September 1989 | N3220J | Unknown | 0 | Marathon, FL | |
sub |
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:24 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
Corrections or additions? ... Edit this accident description
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