What was found
LT HORIZ STAB STA 129.50; INSPAR RIB ASSY 5 IS CRACKED AT UPPER FWD I/B FLANGE (FIST HOLE). ACCOMPLISHED REPAIR AT LT HORIZ STAB STA 129.50 INSPAR RIB ASSY 5 AT UPPER FWD I/B FLANGE IAW RES 2016044-4 AND EA 20-155-00989 REV IR.
- Difficulty date
- July 1, 2020
- Submitted
- July 14, 2020
- Operation
- Air carrier
- Aircraft
- N478WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 33989
- Aircraft time
- 55,249 hours, 32,699 cycles
- System (JASC)
- 5511 · Horizontal Stabilizer, Spar/Rib
- Part
- Rib
- Condition
- Cracked
- Location
- Lt Horiz 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.