SDR DALA2016062204830

Service difficulty report · Rib · Doug MD88

Difficulty date: June 21, 2016
Submitted: June 22, 2016
Operation: Air carrier
Aircraft: N900DE
Make and model: Doug MD88
Aircraft serial: 53372
Aircraft time: 63,904 hours, 46,686 cycles
System (JASC): 5531 · Vertical Stabilizer, Spar/Rib
Part: Rib
Condition: Cracked
Location: Vertical Stab
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

CRACK ON LT RIBS INTERNAL STRUCTURE FIXED L/E STA ZFS=17.656 AND ZFS=23.500 APPROXIMATELY AND ELONGATED HOLES ON FORMER STA ZFS=30.000 AT VERTICAL STABILIZER. RIBS AND FORMER WERE REPAIRED IAW SRM 55-02, FIG 27, 51-30-2, 51-30-5, 51-10-2, 51-10-3 OAR 21 AND 14.

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