B737-800 captain reported after parking at the gate he observed the nose of the aircraft rising into...

Attributes
ACN	1425574
Time
Date	201702
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	Parked
Flight Plan	IFR
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 150 Flight Crew Type 17600
Events
Anomaly	Deviation - Procedural Weight And Balance Deviation - Procedural Published Material / Policy Flight Deck / Cabin / Aircraft Event Other / Unknown Ground Event / Encounter Other / Unknown

Narrative:

Aircraft was a full 737-800. We parked with approximately 7200 pounds of fuel. Parking brake was set. About ten minutes into deboarding the nose wheel of the aircraft lifted up off the ground. I was standing in the jetway when this occurred. The agent alertly handled control of the jetway. Deboarding was stopped. Shortly after; two aircraft mechanics came up from the ramp and stated they were driving by and saw the nose of the aircraft off the ground by about 12 to 18 inches. They also stated that the attached tug had probably kept the nose wheel from going higher. Nose came back down. Provisioning trucks were in position front and aft. There were approximately 50 people left to deboard at the time of the incident. I think the forward cargo bin had been unloaded first after going down to the ramp and looking at the aircraft shortly after the incident. The incident was entered in the logbook. Incoming captain was briefed on the incident as well as maintenance. Flight manager was briefed as well.

Original NASA ASRS Text

Title: B737-800 Captain reported after parking at the gate he observed the nose of the aircraft rising into the air when the proper unloading sequence was apparently not followed.

Narrative: Aircraft was a full 737-800. We parked with approximately 7200 pounds of fuel. Parking brake was set. About ten minutes into deboarding the nose wheel of the aircraft lifted up off the ground. I was standing in the jetway when this occurred. The Agent alertly handled control of the jetway. Deboarding was stopped. Shortly after; two aircraft mechanics came up from the ramp and stated they were driving by and saw the nose of the aircraft off the ground by about 12 to 18 inches. They also stated that the attached tug had probably kept the nose wheel from going higher. Nose came back down. Provisioning trucks were in position front and aft. There were approximately 50 people left to deboard at the time of the incident. I think the forward cargo bin had been unloaded first after going down to the ramp and looking at the aircraft shortly after the incident. The incident was entered in the logbook. Incoming Captain was briefed on the incident as well as Maintenance. Flight Manager was briefed as well.

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.

B737-800 captain reported after parking at the gate he observed the nose of the aircraft rising into the air when the proper unloading sequence was apparently not followed.