B737 ng captain reported the aircraft moved about a foot after parking at the gate in a high wind en...

Narrative:

Landed uneventfully in las in high winds. Taxied to gate and parked. Winds were reported from mid to upper 20s gusting to mid to upper 30s out of southwest. Received 'chocks in' signal and released parking brake and called for parking check like normal. I totally forgot about the wind and responded 'released' to first officer's 'parking brake' challenge on parking check. Finished checklist and began packing up our stuff when fas halted deplaning when jetway moved about a foot off the airplane. First officer and I both immediately realized the parking brake should still be set. I immediately set the brake and the gate agent moved the jetway up to the door and deplaning resumed. The wind blowing on the tail had moved the nose wheel about a foot off the j-line. It had been a two-leg; 9 hour day so I was tired but not overly so. I had flown a red eye; arriving at xa:00 am the morning prior to this event. My sleep recovery from the red eye may have had an impact; but I didn't feel tired when I reported for work 9 hours earlier. My experience has been that it is rare to find myself in a situation where the brake should be left set as covered in the flight manual. Perhaps there was an expectation bias on my part that the brake was to be released like it always is.

Original NASA ASRS Text

Title: B737 NG Captain reported the aircraft moved about a foot after parking at the gate in a high wind environment when the Captain neglected to keep the parking brake set as required by the SOP in those conditions.

Narrative: Landed uneventfully in LAS in high winds. Taxied to gate and parked. Winds were reported from mid to upper 20s gusting to mid to upper 30s out of SW. Received 'chocks in' signal and released parking brake and called for parking check like normal. I totally forgot about the wind and responded 'released' to FO's 'parking brake' challenge on parking check. Finished checklist and began packing up our stuff when FAs halted deplaning when jetway moved about a foot off the airplane. FO and I both immediately realized the parking brake should still be set. I immediately set the brake and the gate agent moved the jetway up to the door and deplaning resumed. The wind blowing on the tail had moved the nose wheel about a foot off the J-line. It had been a two-leg; 9 hour day so I was tired but not overly so. I HAD flown a red eye; arriving at XA:00 am the morning prior to this event. My sleep recovery from the red eye MAY have had an impact; but I didn't feel tired when I reported for work 9 hours earlier. My experience has been that it is rare to find myself in a situation where the brake should be left set as covered in the Flight Manual. Perhaps there was an expectation bias on my part that the brake was to be released like it always is.

Data retrieved from NASA's ASRS site 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.

Attributes
ACN	1402673
Time
Date	201611
Local Time Of Day	1801-2400
Place
Locale Reference	LAS.Airport
State Reference	NV
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Parked
Flight Plan	IFR
Person 1
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Deviation - Procedural Published Material / Policy Ground Event / Encounter Other / Unknown

B737 ng captain reported the aircraft moved about a foot after parking at the gate in a high wind environment when the captain neglected to keep the parking brake set as required by the SOP in those conditions.