A landing B737-700 experienced autospoilers failure with wing spoiler alleviation systems involved. ...

Attributes
ACN	681436
Time
Date	200512
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	ground : parked
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	681436
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact
Consequence	other
Factors
Maintenance	contributing factor : lighting performance deficiency : logbook entry performance deficiency : non compliance with legal requirements
Supplementary
Problem Areas	Flight Crew Human Performance Maintenance Human Performance Aircraft Chart Or Publication
Primary Problem	Aircraft

Narrative:

Automatic speed brake would not deploy on landing. Flight was a terminator. Consulted with maintenance control -- write up was for MEL 27-20. Additionally; 27-7 applied due to wing load alleviation system being involved. Control directed 27-20 to be used on placard. Special procedure 2 also applied for pulling and collaring 2 circuit breakers for affected systems. Couple of issues presented themselves: 1) MEL is vague about exact location of the circuit breakers involved. It provided proper labeling language but not exact location as in QRH; ie; P-6-2A; etc. If pilots are being directed to pull circuit breakers to comply with mels (first time for me in 11 yrs); there needs to be specific guidance. 2) second MEL provision applied in this case -- MEL not clear about using one parent placard or if two placards are required to be displayed. 3) does anybody else have trouble putting those collars on the circuit breakers? I've got short stubby fingers and had a hard time getting them in place -- dropped numerous times on dark floor in cockpit. Tested patience. Is there a simple tool or technique available that could be kept in the cockpit? Maybe there is and I just don't know about it.callback conversation with reporter revealed the following information: the reporter stated the MEL is deficient in the following special procedures with the autospoilers inoperative. On a winglet equipped aircraft with the autospoilers deferred inoperative the spoiler alleviation system is also rendered inoperative. Spoiler alleviation system is in the MEL chapter 27-7 and maintenance control directed to use only chapter 27-20 placard. The reporter questions; will the next crew know there is a weight and speed restriction with the spoiler alleviation system inoperative? The MEL requires two circuit breakers to be opened and locked out but gives no panel location of breakers; adding; the installation of the lockout rings is difficult and needs a tool like snap ring pliers.

Original NASA ASRS Text

Title: A LNDG B737-700 EXPERIENCED AUTOSPOILERS FAILURE WITH WING SPOILER ALLEVIATION SYSTEMS INVOLVED. CREW RPTS PROBLEMS WITH CIRCUIT BREAKER LOCKOUTS AND PLACARD REQUIREMENTS.

Narrative: AUTO SPD BRAKE WOULD NOT DEPLOY ON LNDG. FLT WAS A TERMINATOR. CONSULTED WITH MAINT CTL -- WRITE UP WAS FOR MEL 27-20. ADDITIONALLY; 27-7 APPLIED DUE TO WING LOAD ALLEVIATION SYSTEM BEING INVOLVED. CTL DIRECTED 27-20 TO BE USED ON PLACARD. SPECIAL PROC 2 ALSO APPLIED FOR PULLING AND COLLARING 2 CIRCUIT BREAKERS FOR AFFECTED SYSTEMS. COUPLE OF ISSUES PRESENTED THEMSELVES: 1) MEL IS VAGUE ABOUT EXACT LOCATION OF THE CIRCUIT BREAKERS INVOLVED. IT PROVIDED PROPER LABELING LANGUAGE BUT NOT EXACT LOCATION AS IN QRH; IE; P-6-2A; ETC. IF PLTS ARE BEING DIRECTED TO PULL CIRCUIT BREAKERS TO COMPLY WITH MELS (FIRST TIME FOR ME IN 11 YRS); THERE NEEDS TO BE SPECIFIC GUIDANCE. 2) SECOND MEL PROVISION APPLIED IN THIS CASE -- MEL NOT CLEAR ABOUT USING ONE PARENT PLACARD OR IF TWO PLACARDS ARE REQUIRED TO BE DISPLAYED. 3) DOES ANYBODY ELSE HAVE TROUBLE PUTTING THOSE COLLARS ON THE CIRCUIT BREAKERS? I'VE GOT SHORT STUBBY FINGERS AND HAD A HARD TIME GETTING THEM IN PLACE -- DROPPED NUMEROUS TIMES ON DARK FLOOR IN COCKPIT. TESTED PATIENCE. IS THERE A SIMPLE TOOL OR TECHNIQUE AVAILABLE THAT COULD BE KEPT IN THE COCKPIT? MAYBE THERE IS AND I JUST DON'T KNOW ABOUT IT.CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE MEL IS DEFICIENT IN THE FOLLOWING SPECIAL PROCS WITH THE AUTOSPOILERS INOPERATIVE. ON A WINGLET EQUIPPED ACFT WITH THE AUTOSPOILERS DEFERRED INOPERATIVE THE SPOILER ALLEVIATION SYSTEM IS ALSO RENDERED INOPERATIVE. SPOILER ALLEVIATION SYSTEM IS IN THE MEL CHAPTER 27-7 AND MAINT CTL DIRECTED TO USE ONLY CHAPTER 27-20 PLACARD. THE RPTR QUESTIONS; WILL THE NEXT CREW KNOW THERE IS A WT AND SPD RESTRICTION WITH THE SPOILER ALLEVIATION SYSTEM INOPERATIVE? THE MEL REQUIRES TWO CIRCUIT BREAKERS TO BE OPENED AND LOCKED OUT BUT GIVES NO PANEL LOCATION OF BREAKERS; ADDING; THE INSTALLATION OF THE LOCKOUT RINGS IS DIFFICULT AND NEEDS A TOOL LIKE SNAP RING PLIERS.

Data retrieved from NASA's ASRS site as of January 2009 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.

A landing B737-700 experienced autospoilers failure with wing spoiler alleviation systems involved. Crew reports problems with circuit breaker lockouts and placard requirements.