<< >> NASA ASRS Report 1702419, November 2019

Air carrier pilot made an incorrect entry into the flight management computer generating incorrect weights for the flight.

Attributes
ACN	1702419
Time
Date	201911
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	A321
Operating Under FAR Part	Part 121
Flight Phase	Parked
Flight Plan	IFR
Component
Aircraft Component	PMC Performance/Thrust Management Computer
Person 1
Function	Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Deviation - Procedural Published Material / Policy Deviation - Procedural Weight And Balance

Narrative:

After taking off from; the mcdu said check weight. We noticed on the takeoff performance print out it said XXX passenger instead of YYY. We aren't sure when the discrepancy happened. I was curious if it happened since I tried to put in the climb gradient per the new memo and it possibly kicked out the numbers if the system isn't up yet. There wasn't a way in flight to see what passenger were invited in a b and c.being new I thought if it was more than 2;000 lbs off it wouldn't generate takeoff performance. When scrolling through page 3 I thought it said 1800 lbs which would have made sense since there were less people that arrived than showed on our prelim. After looking in flight it said 18;000 lbs difference.

Related reports:

• B747 flight crew reported the flight management system direc...
• Emb-175 flight crew reported incorrect management of FMS res...
• A B777-200 flight management computer was loaded with the in...
• A B767-300 on takeoff, the right engine was slightly lower o...
• A mechanic and a lead report about an incorrect cabin manage...
• A B737-700 inoperative ACARS system communication management...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: Air carrier pilot made an incorrect entry into the flight management computer generating incorrect weights for the flight.

Narrative: After taking off from; the MCDU said check weight. We noticed on the takeoff performance print out it said XXX passenger instead of YYY. We aren't sure when the discrepancy happened. I was curious if it happened since I tried to put in the climb gradient per the new memo and it possibly kicked out the numbers if the system isn't up yet. There wasn't a way in flight to see what passenger were invited in a b and c.Being new I thought if it was more than 2;000 lbs off it wouldn't generate takeoff performance. When scrolling through page 3 I thought it said 1800 lbs which would have made sense since there were less people that arrived than showed on our prelim. After looking in flight it said 18;000 lbs difference.

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.