<< >> NASA ASRS Report 585495, June 2003

MD80 first officer observed an automatic spoiler that did not deploy automatically on landing at dfw. The crew did not list the problem in the aircraft maintenance logbook.

Attributes
ACN	585495
Time
Date	200306
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dfw.airport
State Reference	TX
Altitude	agl single value : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	landing : roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
ASRS Report	585495
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : critical non adherence : published procedure non adherence : far non adherence : company policies
Independent Detector	aircraft equipment other aircraft equipment : auto spoilers other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance Company
Primary Problem	Flight Crew Human Performance

Narrative:

Upon landing at dfw due to return for unsafe thrust reverser indications, the automatic spoilers did not deploy. We did not enter this into the logbook because we thought we might have missed the detent. This is the third time this has happened to me in the last 2 months. Since it is not the first officer's job to arm the spoilers, I have no idea if the detent is easy to miss or if the mechanism is getting worn. In each case, we deployed the spoilers manually. In light of a recent accident at little rock, I feel this problem needs to be investigated. I would bet that many crews do not write this problem up because they think it was their fault for missing the detent.

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Original NASA ASRS Text

Title: MD80 FO OBSERVED AN AUTO SPOILER THAT DID NOT DEPLOY AUTOMATICALLY ON LNDG AT DFW. THE CREW DID NOT LIST THE PROB IN THE ACFT MAINT LOGBOOK.

Narrative: UPON LNDG AT DFW DUE TO RETURN FOR UNSAFE THRUST REVERSER INDICATIONS, THE AUTO SPOILERS DID NOT DEPLOY. WE DID NOT ENTER THIS INTO THE LOGBOOK BECAUSE WE THOUGHT WE MIGHT HAVE MISSED THE DETENT. THIS IS THE THIRD TIME THIS HAS HAPPENED TO ME IN THE LAST 2 MONTHS. SINCE IT IS NOT THE FO'S JOB TO ARM THE SPOILERS, I HAVE NO IDEA IF THE DETENT IS EASY TO MISS OR IF THE MECHANISM IS GETTING WORN. IN EACH CASE, WE DEPLOYED THE SPOILERS MANUALLY. IN LIGHT OF A RECENT ACCIDENT AT LITTLE ROCK, I FEEL THIS PROB NEEDS TO BE INVESTIGATED. I WOULD BET THAT MANY CREWS DO NOT WRITE THIS PROB UP BECAUSE THEY THINK IT WAS THEIR FAULT FOR MISSING THE DETENT.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.