Service difficulty report · Spar Cap · Doug MD11F

Difficulty date
September 22, 2021
Submitted
October 11, 2021
Operation
Air carrier
Aircraft
N624FE
Make and model
Doug MD11F
Aircraft serial
48443
Aircraft time
110,995 hours, 23,309 cycles
Part
Spar Cap
Part number
AIJC7515501
Condition
Cracked
Location
Vertical Stab
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 HIGH FREQUENCY EDDY CURRENT SURFACE INSPECTION ON THE LEFT HAND FORWARD FLANGE OF UPPER SECTION REAR SPAR CAP AT LOWER VERTICAL STABILIZER , NUMBER 4 BANJO FITTING STATION Y = 2164 , FOUND 01 EACH CRACK INDICATION BETWEEN THE LOWEST TWO FASTENERS. LOWER VERTICAL STABILIZER NUMBER 4 BANJO FITTING STATION Y = 2164 01 EACH CRACKED BETWEEN THE LOWEST TWO FASTENERS ON LEFT HAND FORWARD FLANGE OF UPPER SECTION TRIMMED AS PER SRM 55-30-02-2R FIGURE 201 REPAIR 5 AND REPAIR CARRIED OUT AS PER SRM 55-30-02-2R FIGURE 202 REPAIR 5. REPAIR CLASSIFIED AS MAJOR PER GMM 6-2- 100. TO CARRIED OUT INITIAL INSPECTION AT 5400 FLIGHT CYCLES AND REPETITIVE INSPECTION AT EVERY 2700 FLIGHT CYCLES AS PER SRM 55-30-02-2R TABLE 203 REPAIR 5 REQUIREMENTS. INSPECTION METHOD BY ULTRASONIC AND HIGH FREQUENCY EDDY CURRENT PER SN10550000.

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