B737-500 flight crew overtemp engine on start but continue to fly the flight.

Attributes
ACN	796806
Time
Date	200807
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 3100
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-500
Operating Under FAR Part	Part 121
Flight Phase	ground : preflight ground : pushback
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 281
ASRS Report	796806
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 234
ASRS Report	796808
Events
Anomaly	aircraft equipment problem : critical non adherence : published procedure non adherence : company policies non adherence : far
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : anomaly accepted
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance Airport Aircraft
Primary Problem	Flight Crew Human Performance

Narrative:

During engine #2 start; we encountered an overtemp after starter cutout. The encounter occurred at a high/hot elevation airport. We had the required duct pressure (limitation) and correct bleed/pack confign for start. During start; we noted weak N2 rotation and proceeded with the start. We were below 200 degrees C and had maximum motoring before start was initiated. During the start; egt rise was normal and fuel flow was normal. Start egt approached the limit; followed by starter cutout. At some point past starter cutout; the engine egt passed the limit of 725 (reaching 734 for 5 seconds). We continued the flight with normal engine readings and documented the issue in the logbook upon arrival. I made the normal callouts during start (eg; egt approaching the limit) and continued to follow instructions under the captain's discretion. Abort the start at 650 degrees C; regardless of starter cutout. Overtemp after starter cutout.

Original NASA ASRS Text

Title: B737-500 FLT CREW OVERTEMP ENGINE ON START BUT CONTINUE TO FLY THE FLIGHT.

Narrative: DURING ENG #2 START; WE ENCOUNTERED AN OVERTEMP AFTER STARTER CUTOUT. THE ENCOUNTER OCCURRED AT A HIGH/HOT ELEVATION ARPT. WE HAD THE REQUIRED DUCT PRESSURE (LIMITATION) AND CORRECT BLEED/PACK CONFIGN FOR START. DURING START; WE NOTED WEAK N2 ROTATION AND PROCEEDED WITH THE START. WE WERE BELOW 200 DEGS C AND HAD MAX MOTORING BEFORE START WAS INITIATED. DURING THE START; EGT RISE WAS NORMAL AND FUEL FLOW WAS NORMAL. START EGT APCHED THE LIMIT; FOLLOWED BY STARTER CUTOUT. AT SOME POINT PAST STARTER CUTOUT; THE ENG EGT PASSED THE LIMIT OF 725 (REACHING 734 FOR 5 SECONDS). WE CONTINUED THE FLT WITH NORMAL ENG READINGS AND DOCUMENTED THE ISSUE IN THE LOGBOOK UPON ARR. I MADE THE NORMAL CALLOUTS DURING START (EG; EGT APCHING THE LIMIT) AND CONTINUED TO FOLLOW INSTRUCTIONS UNDER THE CAPT'S DISCRETION. ABORT THE START AT 650 DEGS C; REGARDLESS OF STARTER CUTOUT. OVERTEMP AFTER STARTER CUTOUT.

Data retrieved from NASA's ASRS site as of May 2009 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.