Service difficulty report · Rib · Bombdr DHC8402

Difficulty date
May 2, 2013
Submitted
May 8, 2013
Operation
Air carrier
Aircraft
N413QX
Make and model
Bombdr DHC8402
Aircraft serial
4060
Aircraft time
28,298 hours, 29,161 cycles
Part
Rib
Condition
Corroded
Location
Rt Wing
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

RT WING FUEL TANK RIB AT STA 281.019 HAS POSSIBLE CORROSION ON TOP OTBD SIDE JUST BELOW UPPER STIFFENER ONE. REMOVED CORROSION RT WING FUEL TANK RIB AT STA 281.019 ON TOP OTBD SIDE JET BELOW UPPER STIFFENER 1 IAW SRM (REV 12) 51-21-00-00-02 CONFIRMED BLENDED AREA CRACK FREE REF NTM 51-00-06-910-801, PT 1, REV 9. MECHANICALLY MEASURED A MAXIMUM OF .005" NOMINAL LOSS ON RIB AT YW 281.019 BLEND IS FOUND TO BE OUT OF LIMITS IAW SRM 57-20-10-00-01, R 12 BLEND WITHIN LIMITS IAW RD8/4-57-2106, 1SS1. ROTO PEENED AFFECTED AREA IAW RD8/4-57-2106, ISSUE 1 APPLIED PROTECTIVE FINISH IAW RD 8/4-57-2106, ISSUE 1 COMPLIED WITH TC RD8/4-57-2106, WO 143293.