Service difficulty report · Duct · Boeing 7377H4

Difficulty date
September 20, 2026
Submitted
September 22, 2026
Operation
Air carrier
Aircraft
N487WN
Make and model
Boeing 7377H4
Aircraft serial
33854
Aircraft time
72,387 hours, 43,461 cycles
Part
Duct
Condition
Loose
Location
Zone 100
Stage of operation
CR
How discovered
O
Nature of condition
N
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CARGO DISCHARGE LIGHT ILLUMINATED AT FL360, EXTINGUISHED AT 9000 MSL. FOUND PNEUMATIC DUCT LOOSE TIGHTENED DUCT IAW SIP PERFORMED CARGO FIRE BOTTLE TEST IAW AMM 26-23-00, OPS CHKD GOOD.

More about the Boeing 737-7H4