B737-300 flight crew experiences an aft cargo door warning at 80 KTS during takeoff with the first o...

Attributes
ACN	1152900
Time
Date	201402
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Component
Aircraft Component	Cargo Door
Person 1
Function	Pilot Flying First Officer
Experience	Flight Crew Last 90 Days 292 Flight Crew Type 1800
Person 2
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 303 Flight Crew Type 6000
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy

Narrative:

I was PF on takeoff after deicing. Weather at the time was reporting visibility of 2NM -sn; winds 020/12. My attention was outside when the 80 knot callout was made. It was about this time that I also saw a master caution light. I do not remember the captain stating intention to 'continue' or 'reject; I have the aircraft.' I glanced up briefly and stated 'aft cargo door.' I believe it was at this point I might have led the captain down the path of rejecting the takeoff. The reject was uneventful and I noted a speed of 100 knots on the airspeed indicator. After notifying ATC; we taxied off the active runway on the reverse high speed taxiway. After calculating the rejected takeoff [energy]; we used a conservative number of a three-mile taxi which gave us a 30-minute cooling period before entering the gate area. Neither the flight attendants nor the passengers seemed alarmed by the rejection. Verbalization of intention to 'continue' or 'reject' needs to be stated clearly and immediately. Looking back now; knowing it was only a master caution and around 80 knots; I would have been better off noting the indication to myself and addressing it once airborne to prevent any confusion in the future.

Original NASA ASRS Text

Title: B737-300 flight crew experiences an aft cargo door warning at 80 KTS during takeoff with the First Officer flying. When the Captain says nothing; the First Officer announces the warning and the Captain rejects. Maintenance found a strap hanging out of the door.

Narrative: I was PF on takeoff after deicing. Weather at the time was reporting visibility of 2NM -SN; winds 020/12. My attention was outside when the 80 knot callout was made. It was about this time that I also saw a Master Caution light. I do not remember the Captain stating intention to 'continue' or 'reject; I have the aircraft.' I glanced up briefly and stated 'aft cargo door.' I believe it was at this point I might have led the Captain down the path of rejecting the takeoff. The reject was uneventful and I noted a speed of 100 knots on the airspeed indicator. After notifying ATC; we taxied off the active runway on the reverse high speed Taxiway. After calculating the RTO [energy]; we used a conservative number of a three-mile taxi which gave us a 30-minute cooling period before entering the gate area. Neither the flight attendants nor the passengers seemed alarmed by the rejection. Verbalization of intention to 'continue' or 'reject' needs to be stated clearly and immediately. Looking back now; knowing it was only a Master Caution and around 80 knots; I would have been better off noting the indication to myself and addressing it once airborne to prevent any confusion in the future.

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.

B737-300 flight crew experiences an aft cargo door warning at 80 KTS during takeoff with the first officer flying. When the captain says nothing; the first officer announces the warning and the captain rejects. Maintenance found a strap hanging out of the door.