A B737-900 crew parked and with no ACARS aft cg or tipping alert; deplaning began. The captain felt ...

Attributes
ACN	1300418
Time
Date	201510
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	B737-900
Operating Under FAR Part	Part 121
Flight Phase	Parked
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 119 Flight Crew Total 24686 Flight Crew Type 12453
Events
Anomaly	Deviation - Procedural Published Material / Policy Deviation - Procedural Weight And Balance Ground Event / Encounter Other / Unknown

Narrative:

Upon arrival no ACARS message per prior bulletin of potential aft center of gravity (cg) and aircraft tipping during deplaning. I felt aircraft starting to rise at gate and at the same time a mechanic rushed in and said aircraft tail was settling quickly. I immediately had as many passengers as possible come [forward] from [the back] of the aircraft and called for the jetway operator to move the canopy back as soon as possible so left 1 door would not catch and get damaged. Mechanic raced back down to ramp after I suggested to tell ramp to immediately stop unloading forward cargo bin and to get everything out of aft cargo.

Original NASA ASRS Text

Title: A B737-900 crew parked and with no ACARS AFT CG or TIPPING alert; deplaning began. The Captain felt aircraft movement in time to move people forward and cease forward cargo baggage removal which prevented tipping damage.

Narrative: Upon arrival no ACARS message per prior bulletin of potential aft Center of Gravity (CG) and aircraft tipping during deplaning. I felt aircraft starting to rise at gate and at the same time a mechanic rushed in and said aircraft tail was settling quickly. I immediately had as many passengers as possible come [forward] from [the back] of the aircraft and called for the jetway operator to move the canopy back as soon as possible so L 1 door would not catch and get damaged. Mechanic raced back down to ramp after I suggested to tell ramp to immediately stop unloading forward cargo bin and to get everything out of aft cargo.

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.

A B737-900 crew parked and with no ACARS aft cg or tipping alert; deplaning began. The captain felt aircraft movement in time to move people forward and cease forward cargo baggage removal which prevented tipping damage.