SDR EE4Y2018041906384

Service difficulty report · Skin · Boeing 737400

Difficulty date: March 26, 2018
Submitted: April 19, 2018
Operation: Air carrier
Aircraft: N306GT
Make and model: Boeing 737400
Aircraft serial: 27157
Aircraft time: 53,992 hours, 29,261 cycles
System (JASC): 5730 · Wing, Plate/Skin
Part: Skin
Condition: Cracked
Location: Lt 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

DURING THE ACCOMPLISHMENT OF SRM 57-20-10, REPAIR 4, FOUND THE LT WING UPPER SKIN, TWO FASTENER HOLES CRACKED. ONE FASTENER HOLE LOCATED AT FASTENER ROW 1, SPECIFICALLY AT WBL 181.4, IT WAS REPAIRED IAW SRM B737-57-20-10, REPAIR 7. THE OTHER FASTENER HOLE LOCATED AT FASTENER ROW 2, SPECIFICALLY AT WBL 145 WAS REPAIRED IAW SR 3-4194343343.

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