Service difficulty report · Indication Sys · Boeing 737824

Difficulty date
August 9, 2021
Submitted
August 9, 2021
Operation
Air carrier
Aircraft
N18223
Make and model
Boeing 737824
Aircraft serial
28932
Aircraft time
69,636 hours, 25,074 cycles
Part
Indication Sys
Condition
Unreliable
Location
Airspeed
Stage of operation
NR
How discovered
9
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

ALTITUDE UNRELIABLE F/O AIRSPEED UNRELIABLE F/O EEC ALT NO1 AND NO2 SPEED TRIM FAIL CREW INDICATED UPON TAKEOFF ROT LARGE BIRD NEAR MISS OR POSSIBLE STRIKE ON F/O SIDE. ASCENDED TO 37K, STRABILIZED AT 35K AND REPORTED DESCREPENCY IN LOG BEGAN. FOLLOWED PROCEDURE, DESCENDED TO 22K TAT1 AND SYSTEMS BEGAN OPERATING NORMAL.ERFORMED DFCS BITE CHECK, AMM 22-11-00-810-801 AUTOTEST PASS, FAULT HISTORY HAS CURRENT FAULTS. SEE ATTACHED ATTACHED ACCOMPLISHED F/O PITOT AND STATIC SYSTEM FLUSHING PER REF MM 34-11-00-170-801. F/O PITOT AND STATIC DRAINS ARE RECONNECTED. WHILE PERFORMING F/O PITOT AND STATIC SYSTEM LEAK CHECK. FOUNDED F/O AIR SPEED AND ALTITUDE LEAK CHECK READING LOWER THAN LAVERSAB TESTER READING. ADD EMP:6092 ACP. IDT INSPECTION IAW GMM 09-10-05 & AMM 34-11-00. VERIFIED RECONECTION, SAFETY & SECURITY OF QUICK DISCONNECTS. NO DEFECTS NOTED. ACPD FULL RANGE LEAK CK OF LEFT & RIGHT PITOT AND STATIC SYSTEMS GOOD, NO LEAKS. AIRSPEED AND ALTIMETRY ACCURACY GOOD USING ALTERNATE "PFD" METHOD IAW AMM 34-11-00-501, ALL READINGS STABLE AND WELL WITHIN TOLERANCE, NO STATUS MSGS, ACPD VISUAL INSP OF PITOT PROBES AND NOTED NO DEFECTS OR DEBRIS IAW AMM 34-11-01-200-804