Service difficulty report · Firewall · Boeing 747243B

Difficulty date
December 15, 2006
Submitted
December 22, 2006
Operation
Air carrier
Aircraft
N540MC
Make and model
Boeing 747243B
Aircraft serial
22508
Aircraft time
98,018 hours, 16,898 cycles
Part
Firewall
Condition
Cracked
Location
Apu Bay
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

APU COMPARTMENT TITANIUM FIREWALL, LOWER LT WEB IS CRACKED. ACCOMPLISHED PERMANENT REPAIR AS PER B747 SRM 53-10-04 FIG 30. ALSO, REFERENCE ATLAS EO 4753A866.