Service difficulty report · Line · Boeing 7378

Difficulty date
August 15, 2022
Submitted
August 17, 2022
Operation
Air carrier
Aircraft
N8747Q
Make and model
Boeing 7378
Aircraft serial
61870
Aircraft time
4,256 hours, 1,675 cycles
Part
Line
Condition
Disconnected
Location
#2 Engine
Stage of operation
CR
How discovered
9
Nature of condition
J, K
Precautionary procedure
E, K

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

What was found

ENGINE #2 HYD LOW PRESSURE LIGHT ILLUMINATED. LOSS OF B HYD QUANTITY IMMEDIATELY FOLLOWED BY OIL FILTER BYAPASS LIGHT. MANUAL FLAP EXTENSION / [01] FOUND #2 ENG CASE DRAIN RETURN LINE DISCONNECTED AT PYLON. RR?D CASE DRAIN LINE; EDP AND SUPPLY LINE CONNECTION AT PUMP (TTG8QOOE7ZDY). SUBSEQUENT STEPS FOLLOWING AMM REF 29-11-11 INCLUDED RR ROTATING SEAL AT AGB AND OIL FLUSH (TTG8QOOE7MB); EMDP RR AND BYD SYSTEM FLUSH (TTG8QOOE7Y44) (TTG8QOOE7NPM). <BR>REF WORK PACKAGE TTG8QOOE6U21 FOR FURTHER DETAILS.;[02] FOUND #2 ENG CASE DRAIN RETURN LINE DISCONNECTED AT PYLON. SEE LP 0350034E; 0350035E; 0350036E; 0350037E AND 0350038E. REF WORK PACKAGE TTG8Q00E6U21 FOR FURTHER DETAILS.;[03] FOUND #2 ENG CASE DRAIN RETURN LINE DISCONNECTED AT PYLON. SEE LP 0350034E; 0350035E; 0350036E; 0350037E AND 0350038E; 0350039E. REF WORK PACKAGE TTG8Q00E6U21 FOR FURTHER DETAILS.

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