SDR UPS804732

Service difficulty report · Rib · Doug DC873F

Difficulty date: October 4, 1995
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N818UP
Make and model: Doug DC873F
Aircraft serial: 46108
System (JASC): 5541 · Rudder, Spar/Rib
Part: Rib
Condition: Cracked
Location: Rudder
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

WHILE IN DALFORT FOR C-CHECK, MAINTENANCE FOUND BOTH HOLES IN UPPER RUDDER, UPPER THRUST LINK SUPPORT RIB CRACKED WHERE THE BOLTS GO THROUGH THE SPLICE BEAM. MAINTENANCE REMOVED AND REPLACED THE RIB ASSY IAW SRM 51-30-2 AND MM 27-20-21, 27-20-101, AND 27-20-141.

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