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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Pilot cites engine problem and potential conflict as cause for expeditious return land to departure airport, performing an unauthorized penetration of class C airspace.
| Attributes | |
| ACN | 354060 |
| Time | |
| Date | 199611 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : 4ac |
| State Reference | NM |
| Altitude | msl bound lower : 6300 msl bound upper : 10000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : abq |
| Operator | general aviation : personal |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach descent other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private |
| Experience | flight time last 90 days : 24 flight time total : 193 flight time type : 34 |
| ASRS Report | 354060 |
| Events | |
| Anomaly | aircraft equipment problem : critical non adherence : far non adherence : published procedure other anomaly other other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : declared emergency none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Near 9500 ft to 10000 ft, about 5-10 mi from class C airspace, engine would not exceed 2400 RPM (during descent) and stuttered. I immediately returned to 4AC and required a loss of altitude to maintain speed. Altitude adequate to make runway in case of power loss. Second aircraft in pattern nearing right base for runway 17 might have caused conflict for direct to base entry. More normal 45 degree to downwind entry may have entered class C. Declaring an emergency and directing all 3 aircraft in pattern to the east of the runway then entering on base would have avoided any possible class C entry, although this might have provoked a conflict among them. Immediate contact of approach control during turn back to airport and declaration of emergency would have eliminated possibility of class C entry and allowed for TA's.
Original NASA ASRS Text
Title: PLT CITES ENG PROB AND POTENTIAL CONFLICT AS CAUSE FOR EXPEDITIOUS RETURN LAND TO DEP ARPT, PERFORMING AN UNAUTH PENETRATION OF CLASS C AIRSPACE.
Narrative: NEAR 9500 FT TO 10000 FT, ABOUT 5-10 MI FROM CLASS C AIRSPACE, ENG WOULD NOT EXCEED 2400 RPM (DURING DSCNT) AND STUTTERED. I IMMEDIATELY RETURNED TO 4AC AND REQUIRED A LOSS OF ALT TO MAINTAIN SPD. ALT ADEQUATE TO MAKE RWY IN CASE OF PWR LOSS. SECOND ACFT IN PATTERN NEARING R BASE FOR RWY 17 MIGHT HAVE CAUSED CONFLICT FOR DIRECT TO BASE ENTRY. MORE NORMAL 45 DEG TO DOWNWIND ENTRY MAY HAVE ENTERED CLASS C. DECLARING AN EMER AND DIRECTING ALL 3 ACFT IN PATTERN TO THE E OF THE RWY THEN ENTERING ON BASE WOULD HAVE AVOIDED ANY POSSIBLE CLASS C ENTRY, ALTHOUGH THIS MIGHT HAVE PROVOKED A CONFLICT AMONG THEM. IMMEDIATE CONTACT OF APCH CTL DURING TURN BACK TO ARPT AND DECLARATION OF EMER WOULD HAVE ELIMINATED POSSIBILITY OF CLASS C ENTRY AND ALLOWED FOR TA'S.
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.