Service difficulty report · Spar Cap · Doug MD1010F

Difficulty date
January 28, 2012
Submitted
January 30, 2012
Operation
Air carrier
Aircraft
N570FE
Make and model
Doug MD1010F
Aircraft serial
47829
Aircraft time
76,595 hours, 26,512 cycles
System (JASC)
5711 · Wing Spar
Part
Spar Cap
Part number
ARB0174502
Condition
Cracked
Location
Zone 600
Part time
76,595 hours, 26,512 cycles
Stage of operation
IN
How discovered
E
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

DURING ACCOMPLISHMENT OF EO 8-5710-7-5007, P2 RT WING REAR SPAR LOWER CAP OTBD FASTENER HOLES , NR 4 AFT AND NR 6 FWD, INDICATED CRACKS IAW NDT INSPECTION COMPLIED WITH EA 8-5710-156937, REV B. 2 HOLE WERE OPENED TO 0.370 AND 0.510" AFTER COLD WORKING AND REPAIR BUSHINGS WERE INSTALLED. CRACK LENGTHS WERE NR4 AT .030 AND NR 6 AT .149".

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