SDR DALA2018043002982

Service difficulty report · Channel · Boeing 7572Q8

Difficulty date: April 29, 2018
Submitted: May 17, 2018
Operation: Air carrier
Aircraft: N624AG
Make and model: Boeing 7572Q8
Aircraft serial: 25624
Aircraft time: 70,192 hours, 21,975 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Channel
Condition: Corroded
Location: Fuselage
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

DOOR 4R LOWER SILL UPPER SURFACE, HAT CHANNEL HAS CORROSION ON UPPER AND LOWER SURFACE AT FASTENER HOLES, STA 1664 RBL70, MARKED. REMOVED AND REPLACED HAT CHANNEL PART 143N8328Y60 PER DWG 146N8722 REV B AND SRM 51-40-02. ORIGINAL MATERIAL .030" LOSS OF .007", WITH .043" REMAINING. BLEND FOUND TO BE OUT OF LIMITS.

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