Service difficulty report · Spar · Bombdr DHC8402

Difficulty date
April 4, 2013
Submitted
April 8, 2013
Operation
Air carrier
Aircraft
N410QX
Make and model
Bombdr DHC8402
Aircraft serial
4053
Aircraft time
27,772 hours, 28,835 cycles
System (JASC)
5711 · Wing Spar
Part
Spar
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

RIGHT WING FRONT SPAR TOP FLANGE HAS BARE METAL AND FRETTING CORROSION FROM STA YW 42 TO YW 155. REMOVED FRETTING CORROSION AND CLEANED BARE METAL AREAS FROM ST YW42 TO YW155 IAW SRM 51-21-00-00-02, REV 12 AND SRM 51-26-00-02-01, REV 12. MIN THICKNESS NOTED .198", CONFIRMED AFFECTED AREA CRACK FREE REF NTM 51-00-04-910-801, PT 1 AND 51-00-06-910-801 PT 1, REV 8. REMAINING THICKNESS FOUND TO BE WITHIN LIMITS IAW RD8/4-57-2064 ISS 1 DATED 13 MAR13. APPLIED SURFACE PROTECTION IAW RD8/4-57-2064, STEP 6, ISS 1 DATED 13-MAR-13. ROTARY FLAP PEENED REWORKED AREA IAW RD8/4-57-2064, ISSUE 1 (NOTE: SURFACE PROTECTION REMOVED IAW SRM 51-26-10-02-01 REV 12). FLAP PEEN INTENSITY .008A FOR 100 MIN 0 SEC. APPLIED SURFACE PROTECTION IAW RD8/4-57-2064 ISS 1. APPLIED TEFLON TAPE IAW RD8/4-57-2064, ISSUE 1. COMPLIED WITH TC RD8/4-57-2064, WO 143401.