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The aircraft would not accelerate normally on takeoff roll or climb after lift-off. The OAT was 78 degrees. The airport was sea level. The reporter thought he either had a lack of power or windshear.
| Attributes | |
| ACN | 333667 |
| Time | |
| Date | 199604 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : pfn |
| State Reference | FL |
| Altitude | agl bound lower : 300 agl bound upper : 400 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : pfn |
| Operator | general aviation : instructional |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : initial climbout : takeoff |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 581 flight time type : 56 |
| ASRS Report | 333667 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : non radar |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other other : unspecified cockpit |
| Resolutory Action | flight crew : declared emergency flight crew : rejected takeoff |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
I was cleared for departure on runway 14 at pfn in a C172 going on a sightseeing flight. I applied full throttle, noticed a pretty good crosswind, 180 degrees 13 KTS (information yy on ATIS.) I noticed the airplane was not accelerating as fast as normal, but it was a relatively warm day (78 degrees F information yy), so I did not pay too much attention to it considering I had 6300 ft of runway to use. Lift-off into ground effect was normal. When I began the climb out, the airspeed indicator was above vy, but I noticed mushy control movements. I do not know if I experienced a power loss or a windshear, but I was not climbing. I assessed the situation and determined I could not climb high enough to execute a traffic pattern, and there was not enough usable runway available, so I decided to head for the clear zone. I executed a soft field landing on the grass, shut down engine, fuel, electronics before touchdown and rolled to a stop. I did have to change my direction on the ground to avoid a fence. There were no injuries, no damage to the aircraft, no damage to any property.
Original NASA ASRS Text
Title: THE ACFT WOULD NOT ACCELERATE NORMALLY ON TKOF ROLL OR CLB AFTER LIFT-OFF. THE OAT WAS 78 DEGS. THE ARPT WAS SEA LEVEL. THE RPTR THOUGHT HE EITHER HAD A LACK OF PWR OR WINDSHEAR.
Narrative: I WAS CLRED FOR DEP ON RWY 14 AT PFN IN A C172 GOING ON A SIGHTSEEING FLT. I APPLIED FULL THROTTLE, NOTICED A PRETTY GOOD XWIND, 180 DEGS 13 KTS (INFO YY ON ATIS.) I NOTICED THE AIRPLANE WAS NOT ACCELERATING AS FAST AS NORMAL, BUT IT WAS A RELATIVELY WARM DAY (78 DEGS F INFO YY), SO I DID NOT PAY TOO MUCH ATTN TO IT CONSIDERING I HAD 6300 FT OF RWY TO USE. LIFT-OFF INTO GND EFFECT WAS NORMAL. WHEN I BEGAN THE CLB OUT, THE AIRSPD INDICATOR WAS ABOVE VY, BUT I NOTICED MUSHY CTL MOVEMENTS. I DO NOT KNOW IF I EXPERIENCED A PWR LOSS OR A WINDSHEAR, BUT I WAS NOT CLBING. I ASSESSED THE SIT AND DETERMINED I COULD NOT CLB HIGH ENOUGH TO EXECUTE A TFC PATTERN, AND THERE WAS NOT ENOUGH USABLE RWY AVAILABLE, SO I DECIDED TO HEAD FOR THE CLR ZONE. I EXECUTED A SOFT FIELD LNDG ON THE GRASS, SHUT DOWN ENG, FUEL, ELECTRONICS BEFORE TOUCHDOWN AND ROLLED TO A STOP. I DID HAVE TO CHANGE MY DIRECTION ON THE GND TO AVOID A FENCE. THERE WERE NO INJURIES, NO DAMAGE TO THE ACFT, NO DAMAGE TO ANY PROPERTY.
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.