SDR UIEA2016031100159

Service difficulty report · Drain · Boeing 7673S1

Difficulty date: March 11, 2016
Submitted: March 11, 2016
Operation: Air carrier
Aircraft: N640GT
Make and model: Boeing 7673S1
Aircraft serial: 25221
Aircraft time: 79,693 hours, 16,845 cycles
System (JASC): 2550 · Cargo Compartments
Part: Drain
Condition: Dirty
Location: Fuselage
Stage of operation: CR
How discovered: O
Nature of condition: O
Precautionary procedure: A

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

What was found

FL 410 LOUD ESCAPING AIR HISS AT 21 - 22L FLOOR LEVEL PALPABLE AIR FLOW. ICE ACCUMULATING ON SKIN, SUSPECT A PRESS LEAK. EMER ESCAPE HATCHES & ECS DUCTING ARE NOT SOURCES. GROUND PRESS ACFT IAW AMM 21-31-00, FOUND EXTERNAL DRAIN, SEE 51-41-00 209 LEAKING. CLEANED DRAIN IAW AMM 51-41-00-102-001. LEAK & LOUD HISS STOPPED.

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