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A military KC130 flight crew experiences vibration in the aircraft during their descent to make a crossing restr and reduces the rate of descent to ameliorate the vibration. After several tries, they obtain relief from the crossing restr.
| Attributes | |
| ACN | 325827 |
| Time | |
| Date | 199601 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : mem |
| State Reference | TN |
| Altitude | msl bound lower : 6000 msl bound upper : 12000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | artcc : zme tracon : mem |
| Operator | other |
| Make Model Name | Large Transport |
| Flight Phase | descent other |
| Route In Use | arrival other arrival star : star |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : military |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 0 flight time total : 7200 flight time type : 1900 |
| ASRS Report | 325827 |
| Person 2 | |
| Affiliation | government : military |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 300 flight time total : 18000 flight time type : 7000 |
| ASRS Report | 325826 |
| Events | |
| Anomaly | aircraft equipment problem : critical altitude deviation : crossing restriction not met other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : overcame equipment problem flight crew : declared emergency other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
At FL140, our KC130 was given clearance to cross walnut intersection at 6000 ft. Clearance was acknowledged. At approximately 12000 ft, the aircraft began to experience vibration. The rate of descent was reduced and the vibration subsided. 3 attempts to contact ZME were unsuccessful. On the fourth attempt, contact was made and center was advised of the situation. ATC acknowledged and switched us to memphis approach. No other aircraft were involved. Flight proceeded without incident and concluded uneventfully.
Original NASA ASRS Text
Title: A MIL KC130 FLC EXPERIENCES VIBRATION IN THE ACFT DURING THEIR DSCNT TO MAKE A XING RESTR AND REDUCES THE RATE OF DSCNT TO AMELIORATE THE VIBRATION. AFTER SEVERAL TRIES, THEY OBTAIN RELIEF FROM THE XING RESTR.
Narrative: AT FL140, OUR KC130 WAS GIVEN CLRNC TO CROSS WALNUT INTXN AT 6000 FT. CLRNC WAS ACKNOWLEDGED. AT APPROX 12000 FT, THE ACFT BEGAN TO EXPERIENCE VIBRATION. THE RATE OF DSCNT WAS REDUCED AND THE VIBRATION SUBSIDED. 3 ATTEMPTS TO CONTACT ZME WERE UNSUCCESSFUL. ON THE FOURTH ATTEMPT, CONTACT WAS MADE AND CTR WAS ADVISED OF THE SIT. ATC ACKNOWLEDGED AND SWITCHED US TO MEMPHIS APCH. NO OTHER ACFT WERE INVOLVED. FLT PROCEEDED WITHOUT INCIDENT AND CONCLUDED UNEVENTFULLY.
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.