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A DC8-73 on engine start declared an emergency due to the cockpit filling with smoke caused by a deferred pack flow control valve not secured closed per the MEL.
| Attributes | |
| ACN | 389689 |
| Time | |
| Date | 199712 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz |
| State Reference | US |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | DC-8 70 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : preflight |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| ASRS Report | 389689 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : far non adherence : published procedure other anomaly other |
| Independent Detector | other flight crewa other other : unspecified cockpit |
| Resolutory Action | flight crew : declared emergency none taken : detected after the fact other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
Aircraft arrived with right pack inoperative. Transferred to dmi (deferred maintenance item). Performed maintenance procedures as spelled out in MEL. On start up pack flow control valve proved not to be closed. Pumped hot air into stalled pack and smoked up cockpit. Fire department called. Operations normal after flow valve closed. Information available insufficient to determine if valve was open or closed.
Original NASA ASRS Text
Title: A DC8-73 ON ENG START DECLARED AN EMER DUE TO THE COCKPIT FILLING WITH SMOKE CAUSED BY A DEFERRED PACK FLOW CTL VALVE NOT SECURED CLOSED PER THE MEL.
Narrative: ACFT ARRIVED WITH R PACK INOP. TRANSFERRED TO DMI (DEFERRED MAINT ITEM). PERFORMED MAINT PROCS AS SPELLED OUT IN MEL. ON START UP PACK FLOW CTL VALVE PROVED NOT TO BE CLOSED. PUMPED HOT AIR INTO STALLED PACK AND SMOKED UP COCKPIT. FIRE DEPT CALLED. OPS NORMAL AFTER FLOW VALVE CLOSED. INFO AVAILABLE INSUFFICIENT TO DETERMINE IF VALVE WAS OPEN OR CLOSED.
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.