 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A CRJ100 in descent at 18000 ft had the 14TH stage bleed overheat warning message. Procedure accomplished warning went away. Later came on steady.
| Attributes | |
| ACN | 699277 |
| Time | |
| Date | 200605 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 18000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zzz.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet CL65 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 240 flight time total : 10500 flight time type : 6000 |
| ASRS Report | 699277 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : 14th stage warning other flight crewa other flight crewb |
| Resolutory Action | flight crew : overcame equipment problem |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft Chart Or Publication |
| Primary Problem | Aircraft |
Narrative:
Received 14TH stage bleed overheat message in flight. Procedure accomplished and warning went away; but returned later. After cycling it remained on the rest of the flight. Procedures called for landing with the left engine at idle and conducting a flaps 20 degrees (vice 45 degrees) landing. A previous write-up indicated a loop or sensor problem instead of an actual overheat. An uneventful landing was conducted. Callback conversation with reporter revealed the following information: the reporter stated the cause of the 14TH stage warning was a sensing loop failure and was a false warning. A section of the left 14TH stage manifold sensing element was replaced for the fix.
Original NASA ASRS Text
Title: A CRJ100 IN DSCNT AT 18000 FT HAD THE 14TH STAGE BLEED OVERHEAT WARNING MESSAGE. PROC ACCOMPLISHED WARNING WENT AWAY. LATER CAME ON STEADY.
Narrative: RECEIVED 14TH STAGE BLEED OVERHEAT MESSAGE IN FLT. PROC ACCOMPLISHED AND WARNING WENT AWAY; BUT RETURNED LATER. AFTER CYCLING IT REMAINED ON THE REST OF THE FLT. PROCS CALLED FOR LNDG WITH THE L ENG AT IDLE AND CONDUCTING A FLAPS 20 DEGS (VICE 45 DEGS) LNDG. A PREVIOUS WRITE-UP INDICATED A LOOP OR SENSOR PROB INSTEAD OF AN ACTUAL OVERHEAT. AN UNEVENTFUL LNDG WAS CONDUCTED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE CAUSE OF THE 14TH STAGE WARNING WAS A SENSING LOOP FAILURE AND WAS A FALSE WARNING. A SECTION OF THE L 14TH STAGE MANIFOLD SENSING ELEMENT WAS REPLACED FOR THE FIX.
Data retrieved from NASA's ASRS site as of January 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.