SDR ASAA11510560

Service difficulty report · Switch · Boeing 737890

Difficulty date: October 20, 2011
Submitted: October 24, 2011
Operation: Air carrier
Aircraft: N562AS
Make and model: Boeing 737890
Aircraft serial: 35091
Aircraft time: 19,418 hours, 5,942 cycles
System (JASC): 2230 · Auto Throttle System
Part: Switch
Part number: 254A11509
Condition: Faulty
Location: Cockpit
Stage of operation: NR
How discovered: O
Nature of condition: J
Precautionary procedure: K

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

What was found

NR 1 REVERSER LIGHT ILLUMINATED ON OVERHEAD PANEL. REPLACED R477 REF WDM 78 32 51. NO HELP. NR 1 T/R WILL NOT STOW WHEN COMMANDED. EAU YIELDS 'L AND R SLEEVE SYNC LOCK PWR. BUMPING FORWARD THRUST LEVER EVER SO SLIGHTLY NR 1 T/R CLOSES. REF FIM 78 32 00 810 812 F00. SUSPECT BAD NR 1 AUTOTHROTTLE SWITCH PACK M1766. REPLACED NR 1 AUTOTHROTTLE SWITCHPACK ASSEMBLY REF MM76 11 07. ALL CHECKS OPS NORMAL. OPERATED NR 1 T/R THROUGH 10 CYCLES. OPERATED NORMAL AND NO EAU FAULTS LOGGED.