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Alternator failure on PA28 results in loss of communication in pattern at cmi. Pilot alertly utilizes wing rocking and tower signal lights for landing clearance.
| Attributes | |
| ACN | 607719 |
| Time | |
| Date | 200401 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : cmi.airport |
| State Reference | IL |
| Altitude | msl single value : 1500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : cmi.tower tower : sat.tower |
| Operator | general aviation : instructional |
| Make Model Name | PA-28 Cherokee/Archer II/Dakota/Pillan/Warrior |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other |
| Flight Phase | descent : approach landing : roll landing : touch and go |
| Route In Use | approach : traffic pattern |
| Flight Plan | None |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial pilot : cfi |
| Experience | flight time last 90 days : 1.8 flight time total : 305.4 flight time type : 180 |
| ASRS Report | 607719 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : local |
| Events | |
| Anomaly | aircraft equipment problem : critical incursion : runway incursion : landing without clearance non adherence : published procedure non adherence : far |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : overcame equipment problem flight crew : landed as precaution other |
| Consequence | other |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance Aircraft |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While flying in the traffic pattern at cmi, loss of radio communication occurred. One touch-and-go landing was made with communication radios working. The second touch-and-go landing was made without clearance to land. On the downwind for the third landing, I rocked my wings until I saw a green light from the tower clearing me for the landing. Once on the runway (runway 22R), I was given a flashing green light on the runway clearing me to taxi. The cause of the problem was a faulty altimeter and loss of battery power.
Original NASA ASRS Text
Title: ALTERNATOR FAILURE ON PA28 RESULTS IN LOSS OF COM IN PATTERN AT CMI. PLT ALERTLY UTILIZES WING ROCKING AND TWR SIGNAL LIGHTS FOR LNDG CLRNC.
Narrative: WHILE FLYING IN THE TFC PATTERN AT CMI, LOSS OF RADIO COM OCCURRED. ONE TOUCH-AND-GO LNDG WAS MADE WITH COM RADIOS WORKING. THE SECOND TOUCH-AND-GO LNDG WAS MADE WITHOUT CLRNC TO LAND. ON THE DOWNWIND FOR THE THIRD LNDG, I ROCKED MY WINGS UNTIL I SAW A GREEN LIGHT FROM THE TWR CLRING ME FOR THE LNDG. ONCE ON THE RWY (RWY 22R), I WAS GIVEN A FLASHING GREEN LIGHT ON THE RWY CLRING ME TO TAXI. THE CAUSE OF THE PROB WAS A FAULTY ALTIMETER AND LOSS OF BATTERY PWR.
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.