<< >> NASA ASRS Report 671476, September 2005

A B767-300ER reports pulling circuit breakers to silence uncontrolled boarding music during cruise. Circuit breakers out prevent PA announcements from cockpit.

Attributes
ACN	671476
Time
Date	200509
Place
Locale Reference	airport : zzz.airport
State Reference	FO
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : zzzz.tracon
Operator	common carrier : air carrier
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	arrival : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 240 flight time total : 7000 flight time type : 2000
ASRS Report	671476
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : less severe maintenance problem : improper maintenance non adherence : far non adherence : published procedure
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact
Consequence	Other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : repair performance deficiency : fault isolation
Supplementary
Problem Areas	Maintenance Human Performance Aircraft Chart Or Publication
Primary Problem	Maintenance Human Performance

Narrative:

This is my third experience with unctlably loud boarding music during cruise on a B767ER. We followed maintenance's recommendations and pulled the public address circuit breaker to silence the very loud/disturbing music during cruise. The pitfall of this procedure is if the circuit breaker is not pushed back in; PA's from the flight deck 'seem' to go out (there is good side tone) but do not. Additionally; the seatbelt and no smoking chimes do not work. These chimes are used to alert the flight attendants to the descent and landing. On my last flight; this led to an extremely rushed preparation for landing by the flight attendants after they realized they had not heard the chimes alerting them to the landing.

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Original NASA ASRS Text

Title: A B767-300ER RPTS PULLING CIRCUIT BREAKERS TO SILENCE UNCTLED BOARDING MUSIC DURING CRUISE. CIRCUIT BREAKERS OUT PREVENT PA ANNOUNCEMENTS FROM COCKPIT.

Narrative: THIS IS MY THIRD EXPERIENCE WITH UNCTLABLY LOUD BOARDING MUSIC DURING CRUISE ON A B767ER. WE FOLLOWED MAINT'S RECOMMENDATIONS AND PULLED THE PUBLIC ADDRESS CIRCUIT BREAKER TO SILENCE THE VERY LOUD/DISTURBING MUSIC DURING CRUISE. THE PITFALL OF THIS PROC IS IF THE CIRCUIT BREAKER IS NOT PUSHED BACK IN; PA'S FROM THE FLT DECK 'SEEM' TO GO OUT (THERE IS GOOD SIDE TONE) BUT DO NOT. ADDITIONALLY; THE SEATBELT AND NO SMOKING CHIMES DO NOT WORK. THESE CHIMES ARE USED TO ALERT THE FLT ATTENDANTS TO THE DSCNT AND LNDG. ON MY LAST FLT; THIS LED TO AN EXTREMELY RUSHED PREPARATION FOR LNDG BY THE FLT ATTENDANTS AFTER THEY REALIZED THEY HAD NOT HEARD THE CHIMES ALERTING THEM TO THE LNDG.

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.