SDR USAR2014F00111

Service difficulty report · Rib · Cessna 560CESSNA

Difficulty date: May 30, 2014
Submitted: June 24, 2014
Operation: General aviation
Make and model: Cessna 560CESSNA
Aircraft time: 9,458 hours, 6,599 cycles
System (JASC): 5511 · Horizontal Stabilizer, Spar/Rib
Part: Rib
Condition: Cracked
Location: Horizontal Stab
Part time: 9,458 hours, 6,599 cycles
Stage of operation: IN
How discovered: B
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

HORIZONTAL STABILIZER RIB BORESCOPE INSPECTION TASK 55-10-01-290, WAS STARTED ON ACFT IAW MM AND QASB 14-005/C-35-14-ASAM-01. DURING THE INSPECTIONS MULTIPLE CRACKS WERE FOUND THROUGHOUT THE HORIZONTAL STABILIZER. CRACKS WERE FOUND IN THE RT STABILIZER FS 521.084, SS 37.20 AND 47.96 AND LT STABILIZER FS 521.084, SS 37.20, 47.96, AND 58.75 AND ON THE LT FS 533.493, SS 47.96. PMO WERE NOTIFIED OF THE CRACKS IMMEDIATELY.