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SDR MZZA2010011100002

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Service difficulty report · Sensor · Boeing 737824

FAA SDR system

Difficulty date
January 11, 2010
Submitted
January 11, 2010
Operation
Air carrier
Aircraft
N26232
Make and model
Boeing 737824
Aircraft serial
28942
Aircraft time
35,282 hours, 13,157 cycles
System (JASC)
3620 · Pneumatic Indicating System
Part
Sensor
Part number
03362599001
Condition
Failed
Location
Bleed Air Sys
Part time
34,607 hours, 12,895 cycles
Stage of operation
IN
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

LEFT DUCT PRESSURE WENT TO ZERO AROUND 19,000 FT. LEFT BLEED TRIP OF LIGHT ILLUMINATED. QRH WAS RUN. LEFT BLEED TRIP COULD NOT BE RESET. ON DESCENT THRU 10,000 FT BLEED TRIP FINALLY RESET. T/S & REPLACED 450 DEG THERMOSTAT & PRECOOLER CNTL VLV SNSR PER AMM 36-11-05 & 36-12-03. RAN ENGS FOR SEVERAL MINUTES. OPS CHECK NORMAL. OK TO CONTINUE. ROTABLE PARTS CHANGE WAS INDICATED - TT 1360007, S/N OFF 05018, TT 1386388, S/N OFF 06894 SENSOR, BLEED A OFF 03-3625-9-9001 5018 ON 29-3611-9-9001 8330 SENSOR, PRECOOL OFF 29-3626-9-9001 6894 ON 29-3626-9-9001 0319.