Service difficulty report · Control Module · Boeing 767322

Difficulty date
August 27, 2021
Submitted
August 27, 2021
Operation
Air carrier
Aircraft
N646UA
Make and model
Boeing 767322
Aircraft serial
25283
Aircraft time
116,778 hours, 18,104 cycles
Part
Control Module
Part number
285T0012201
Condition
Failed
Location
Spoilers
Stage of operation
DE
How discovered
O
Nature of condition
F
Precautionary procedure
B

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

What was found

ON DESCENT AFTER SPEED BRAKE RETRACTION LEFT SPOILERS STAYED UP AND REMAINED TILL AFTER LDG DURING CREW DEBRIEF CAPTAIN REPORTS UPON INTIAL DEPLOYMENT OF SPOILERS OPS WERE NORMAL. UPON STOWING SPOILERS LEFT BANK OF SPOILERS STAYED DEPLOYED,RIGHT WING SPOILERS STOWED. CAPTAIN ROLLING. SEE PART 2/2..... SAID HE INPUTED AROUND 45 DEGREES OF YOKE TO PREVENT PLANE FROM DOWN #2 ENGINE AND THE FIRE DEPARTMENT REPORTED LEFT SPOILERS CAME DOWN LEFT WING SPOILERS STAYED UP. AS CREW WAS TAXING IN, CREW SHUT RIGHT WING SPOILERS DID NOT COME UP. STOWED SPOILERS AGAIN AND 2/2. CAPTAIN THEN REDEPLOYED SPOILERS FOR TROUBLESHOOTING AND SDR FLAGGED BITE OF 1L SCM SHOWS FAULT "AMBER DUE TO HYD". RPL L1 SCM REF MM27-09-00-422-008. ACCOMPLISHED INITIAL SYSTEM TEST REF MM27-09-00-742-064 STEP F (1) -(17). CHECKS GOOD. REQUIRE STEP F ROTABLE PARTS CHANGE WAS INDICATED - TT # 1461642 SN OFF 6107 IPC REFERENCE # 27-09-01 (18) TO COMPLETION. PCA XDCR 1 OR 12. M306 IS SPOILER #1 PCA. BITE OF 1R SCM SHOWS FAULT 27-61-13, M306 OR SCM FUSE LIGHT AND REMOVED SPOILER #1 PCA IAW AMM 27-61-02-024-001. PART NUMBER VERIFIED AND CLEARANCE TO INSTALL ACCOMPLISHED ORDIQ U118014 WELL REF AMM 27-09-00-201. THANKS! ORD-TECH SUPPORT UPON ENGINEERING REVIEW OF QAR DATA, PLEASE REPLACE 1R SCM AS REPLACED 1R SCM REF AMM 27-09-00-422. OPS CHECKS (MM 27-09-00-742) REQUIRED AFTER SPOILER PCA REPLACEMENT IS COMPLETED. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1033387 SN OFF 5825 MODULE, CONTROL OFF 99-2761-9-0004 5825