A B727-200 on takeoff at 120 KTS had the left air conditioning pack trip off for the second time in 2 days. The right pack was previously deferred to operate only in the air with the flaps retracted.

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Attributes
ACN	407147
Time
Date	199807
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : cvg
State Reference	OH
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B727-200
Operating Under FAR Part	Part 121
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 160 flight time total : 19560 flight time type : 3500
ASRS Report	407147
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : less severe non adherence : published procedure non adherence : far other anomaly other other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	none taken : detected after the fact other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Aircraft had maintenance carryover on right aircraft pack door actuator, which prevented use of pack on ground and in air with flaps extended. On takeoff roll, left pack tripped at approximately 120 KIAS with V1/vr 142 KTS. Continued takeoff. At 2500 ft AGL accelerated, retracted flaps, engaged right pack, and performed abnormal procedures. This is second time left pack has tripped on takeoff in past 2 days. Why is air carrier not repairing other pack as soon as possible with left pack's known history?

Original NASA ASRS Text

Title: A B727-200 ON TKOF AT 120 KTS HAD THE L AIR CONDITIONING PACK TRIP OFF FOR THE SECOND TIME IN 2 DAYS. THE R PACK WAS PREVIOUSLY DEFERRED TO OPERATE ONLY IN THE AIR WITH THE FLAPS RETRACTED.

Narrative: ACFT HAD MAINT CARRYOVER ON R ACFT PACK DOOR ACTUATOR, WHICH PREVENTED USE OF PACK ON GND AND IN AIR WITH FLAPS EXTENDED. ON TKOF ROLL, L PACK TRIPPED AT APPROX 120 KIAS WITH V1/VR 142 KTS. CONTINUED TKOF. AT 2500 FT AGL ACCELERATED, RETRACTED FLAPS, ENGAGED R PACK, AND PERFORMED ABNORMAL PROCS. THIS IS SECOND TIME L PACK HAS TRIPPED ON TKOF IN PAST 2 DAYS. WHY IS ACR NOT REPAIRING OTHER PACK ASAP WITH L PACK'S KNOWN HISTORY?

Data retrieved from NASA's ASRS site as of July 2007 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.