SDR 98ZZZX1326

Service difficulty report · Rib Assy · Cessna 421C

Difficulty date
March 3, 1998
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N98437
Make and model
Cessna 421C
Aircraft serial
421C0040
System (JASC)
5711 · Wing Spar
Part
Rib Assy
Part number
51221103
Condition
Buckled
Location
Lt Ws 58.94
Part time
5,917 hours
Stage of operation
IN
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING PHASE INSPECTION, RIB AT LT WS 58.94 WAS FOUND BUCKLED. DAMAGE EXTENDED FROM 2.50 INCHES AFT OF MAIN SPAR AT TOP TO 7 INCHES AFT OF MAIN SPAR AT BOTTOM. SUSPECT CAUSED BY HARD LANDING. MANUFACTURER HAS BEEN CONTACTED FOR RECOMMENDATIONS.

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