SDR UPS01435941

Service difficulty report · Trunnion · Boeing 747123

Difficulty date: May 10, 2001
Submitted: May 23, 2001
Operation: Air carrier
Aircraft: N671UP
Make and model: Boeing 747123
Aircraft serial: 20323
Aircraft time: 72,316 hours, 20,588 cycles
System (JASC): 3221 · Nose/Tail Landing Gear Attach Section
Part: Trunnion
Part number: 65B1008123
Condition: Cracked
Location: Nlg Ww
Stage of operation: IN
How discovered: V
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

INSPECTION TYPE:C-2 NLG W/W - LT BS 380 TRUNNION FITTING MOST FWD LOWER HOLE FOUND CRACKED AT 5 O''CLOCK AND 11 O''CLOCK POSITION (LOOKING O/B). THE DISCREPANT CRACK STOP DRILLED, OPEN HOLE HFEC INSP C/O & NLG W/W LT BS 380 TRUNNION FITTING AND FOUND CRACK FREE. DETAIL VISUALLY INSP C/O & NO DEFECTS FOUND. TRUNNION FITTING REPAIRED AS PER RS-53-24-34657. THIS REPAIR IS TIME LIMITED FOR 24 MONTHS OR 500 CYCLES. TRUNNION FITTING TO BE REPLACED AT THE NEXT C-CHECK.