2024-03 · NASA ASRS report 2095623
A300 flight crew reported failure of both pitch trim and autopilot systems during climbout. Flight crew performed a diversion using manual aircraft control and landed.
Shortly after takeoff Pitch Trim 2 and Yaw Damper 2 tripped off; upon slat retraction received ADC2 INOP ECAM message. FO was hand- flying and once the workload reduced I reviewed the QRH info for ADC fault. This indicated we would be unable RVSM so I shared the info with Dispatch/Maintenance Control. The FO placed AP 1 on and we asked to level at FL290 while we reviewed the QRH and MEL for additional info and awaited Dispatch/Maintenance Control input. After about 2 minutes level; AP1 clicked off along with Pitch trim 1 and Yaw Damper 1. We reset them as the ECAM instructed and resumed AP1 ops. Dispatch sent message confirming we were not RVSM capable but the the AP1 tripped off again. We as a crew made the decision to divert to ZZZ and [advised ATC]. The FO was hand-flying using manual trim. I let Dispatch know we were a priority aircraft and diverting to ZZZ. I got the ATIS; requested vectors to ZZZ; and configured the FMS and radios for the ILSXX. Once I had all that done; I took the pilot flying duties. We reviewed the JAMMED STABILIZER procedures because we weren't sure why both Pitch Trim system failed. We intercepted the ILS about 20 miles out; slowed and configured early in case we had any stabilizer issues but the manual trim worked well. We landed and taxied to the ramp. Cause: ADC 2 failure
Shortly after takeoff Pitch Trim 2 and Yaw Damper 2 tripped off; upon slat retraction received ADC2 INOP ECAM message. FO was hand- flying and once the workload reduced I reviewed the QRH info for ADC fault. This indicated we would be unable RVSM so I shared the info with Dispatch/Maintenance Control. The FO placed AP 1 on and we asked to level at FL290 while we reviewed the QRH and MEL for additional info and awaited Dispatch/Maintenance Control input. After about 2 minutes level; AP1 clicked off along with Pitch trim 1 and Yaw Damper 1. We reset them as the ECAM instructed and resumed AP1 ops. Dispatch sent message confirming we were not RVSM capable but the the AP1 tripped off again. We as a crew made the decision to divert to ZZZ and [advised ATC]. The FO was hand-flying using manual trim. I let Dispatch know we were a priority aircraft and diverting to ZZZ. I got the ATIS; requested vectors to ZZZ; and configured the FMS and radios for the ILS XX. Once I had all that done; I took the pilot flying duties. We reviewed the JAMMED STABILIZER procedures because we weren't sure why both Pitch Trim system failed. We intercepted the ILS about 20 miles out; slowed and configured early in case we had any stabilizer issues but the manual trim worked well. We landed and taxied to the ramp.Cause: Mechanical breakdown of ADC 2 computer; however; additional failures may be present after maintenance concludes their diagnosis. Suggestions: It is tough to predict mechanical breakdowns. This particular problem was previously written-up; so perhaps an earlier replacement for certain flight control / instrumentation components rather than resets.
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.
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