B737-400 captain finds it necessary to instruct ground supervisors about proper aircraft receipt pro...

Attributes
ACN	727751
Time
Date	200702
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : lax.airport
State Reference	CA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-400
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
Experience	flight time last 90 days : 215 flight time type : 1600
ASRS Report	727751
Person 2
Function	other personnel other
Events
Anomaly	non adherence : published procedure non adherence : company policies other anomaly
Independent Detector	other flight crewa
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft Company
Primary Problem	Company

Narrative:

Upon arrival at lax we were securing the aircraft for a routine overnight. Approximately 1/4 of the passenger were still deplaning when we were preparing to secure the aircraft for routine overnight and I released the brakes and sensed the aircraft moving. I stopped the aircraft with light brakes and stopped the deplaning. Maintenance technicians checked the aircraft and we repositioned with a tug 2-3 ft back to the '400' spot. Jetbridge was realigned and deplaning continued. No injuries or damage. I held a full debrief with contract and company ramp mgrs on the need to use standard hand signals and follow arrival procedures exactly. Through our debrief I discovered on block in the aircraft marshaller gave what I perceived to be a chock symbol (which I now realized he was simply waving his wands at another ground crew man) and I spent the next 5-10 mins of effort to get their attention for external power which I made aware to the ramp mgrs as unacceptable. We reviewed the priorities of an arriving aircraft: clear the area; proper signals; chock; external power; positive eye contact with crew; and then baggage and aircraft servicing. Ensure all ground safety procedures are compliant. If not; stop the show.

Original NASA ASRS Text

Title: B737-400 CAPTAIN FINDS IT NECESSARY TO INSTRUCT GND SUPERVISORS ABOUT PROPER ACFT RECEIPT PROCEDURES FOLLOWING ACFT MOVEMENT WHILE PAX ARE DEPLANING.

Narrative: UPON ARR AT LAX WE WERE SECURING THE ACFT FOR A ROUTINE OVERNIGHT. APPROX 1/4 OF THE PAX WERE STILL DEPLANING WHEN WE WERE PREPARING TO SECURE THE ACFT FOR ROUTINE OVERNIGHT AND I RELEASED THE BRAKES AND SENSED THE ACFT MOVING. I STOPPED THE ACFT WITH LIGHT BRAKES AND STOPPED THE DEPLANING. MAINT TECHNICIANS CHKED THE ACFT AND WE REPOSITIONED WITH A TUG 2-3 FT BACK TO THE '400' SPOT. JETBRIDGE WAS REALIGNED AND DEPLANING CONTINUED. NO INJURIES OR DAMAGE. I HELD A FULL DEBRIEF WITH CONTRACT AND COMPANY RAMP MGRS ON THE NEED TO USE STANDARD HAND SIGNALS AND FOLLOW ARR PROCS EXACTLY. THROUGH OUR DEBRIEF I DISCOVERED ON BLOCK IN THE ACFT MARSHALLER GAVE WHAT I PERCEIVED TO BE A CHOCK SYMBOL (WHICH I NOW REALIZED HE WAS SIMPLY WAVING HIS WANDS AT ANOTHER GND CREW MAN) AND I SPENT THE NEXT 5-10 MINS OF EFFORT TO GET THEIR ATTN FOR EXTERNAL PWR WHICH I MADE AWARE TO THE RAMP MGRS AS UNACCEPTABLE. WE REVIEWED THE PRIORITIES OF AN ARRIVING ACFT: CLR THE AREA; PROPER SIGNALS; CHOCK; EXTERNAL PWR; POSITIVE EYE CONTACT WITH CREW; AND THEN BAGGAGE AND ACFT SVCING. ENSURE ALL GND SAFETY PROCS ARE COMPLIANT. IF NOT; STOP THE SHOW.

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.

B737-400 captain finds it necessary to instruct ground supervisors about proper aircraft receipt procedures following aircraft movement while passenger are deplaning.