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SDR AWXA200100526

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Service difficulty report · Drain Line · Boeing 737317

FAA SDR system

Difficulty date
October 16, 2001
Submitted
October 17, 2001
Operation
Air carrier
Aircraft
N331AW
Make and model
Boeing 737317
Aircraft serial
23747
Aircraft time
44,552 hours, 28,198 cycles
Engine
Cfmint CFM563B2
Engine time
40,264 hours, 25,271 cycles
System (JASC)
7170 · Engine Drains
Part
Drain Line
Part number
3352534030
Condition
Blocked
Location
Nr 1 Engine
Stage of operation
CL
How discovered
O
Nature of condition
R
Precautionary procedure
A

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

What was found

AFTER TAKEOFF AT 500 FT TAKEOFF POWER WAS AT 93.4 PERCENT N1, THE NR 1 ENG RAPIDLY LOST PWR TO APPROX 60 PERCENT N1, FUEL FLOW REDUCED. AUTO THROTTLE REMAINED ON & POWER LEVERS REMAINED FORWARD IN TAKEOFF POSITION. AFTER LEVELING OFF & REDUCING PWR ON BOTH ENGINES, POWER ON NR 1 ENG WAS NORMAL. RETURNED MAKING AN UNEVENTFUL LANDING. NR 1 ENG OPERATED NORMAL ON LANDING. MX FOUND NR 1 ENG CDP TUBE DRAIN HOLE BLOCKED. CLEARED BLOCKAGE IN CDP TUBE DRAIN HOLE, RAN BOTH ENG'S & CHECKED ENG TRIM, TRIM TABLES & FOUND PARAMETERS WITHIN LIMITS. PERFORMED AUTO THROTTLE BITE CHECK, NO FAULTS NOTED & PERFORMED AUTO THROTTLE RANGE & RIG CHECK, CHECKED NORMAL. PERFORMED TAKEOFF POWER RUNS, ENG'S CHECKED NORMAL.