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B757 flight crew and company dispatcher reported thunderstorms along the route resulted in turbulence with large airspeed/altitude variations and a lightning strike.
| Attributes | |
| ACN | 1599442 |
| Time | |
| Date | 201812 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | IMC |
| Aircraft 1 | |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument |
| Experience | Flight Crew Type 1433 |
| Person 2 | |
| Function | First Officer Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument |
| Events | |
| Anomaly | Deviation - Altitude Excursion From Assigned Altitude Deviation - Speed All Types Inflight Event / Encounter Weather / Turbulence |
Narrative:
While at cruise in IMC received turbulence report on ACARS along our route of flight. Seated passengers and fas (flight attendants). In IMC; utilizing weather radar for thunderstorm cell avoidance; remained 40 miles west of line of 3 cells. Captain on 80 mile scale; first officer (first officer) on 20 mile scale. Red cell popped-up immediately ahead; first officer initiated turn to avoid; encountered possible rapidly building cell underneath us. Airspeed excursions +/- 40 KIAS; autopilot tripped-off; first officer allowed aircraft to descend while attempting to keep wings level and avoid high/low speed stall and remain within aircraft structural limits. As pm (pilot monitoring) I notified ATC of our altitude excursion due to severe weather penetration. ATC immediately cleared us to fl 370. Leveled at FL370 after regaining airspeed control. Sustained lightning strike on tail and horizontal stab. Ozone reported in cabin and flight deck. No injuries to passengers or crew as they were all strapped-in due to previous PA. Dispatch and maintenance notified. Inspection revealed lightning strike damage previously stated. Accepted altitude loss to prevent aircraft damage.
Original NASA ASRS Text
Title: B757 flight crew and company dispatcher reported thunderstorms along the route resulted in turbulence with large airspeed/altitude variations and a lightning strike.
Narrative: While at cruise in IMC received turbulence report on ACARS along our route of flight. Seated passengers and FAs (Flight Attendants). In IMC; utilizing weather radar for thunderstorm cell avoidance; remained 40 miles west of line of 3 cells. Captain on 80 mile scale; FO (First Officer) on 20 mile scale. Red cell popped-up immediately ahead; FO initiated turn to avoid; encountered possible rapidly building cell underneath us. Airspeed excursions +/- 40 KIAS; autopilot tripped-off; FO allowed aircraft to descend while attempting to keep wings level and avoid high/low speed stall and remain within aircraft structural limits. As PM (Pilot Monitoring) I notified ATC of our altitude excursion due to severe weather penetration. ATC immediately cleared us to FL 370. Leveled at FL370 after regaining airspeed control. Sustained lightning strike on tail and horizontal stab. Ozone reported in cabin and flight deck. No injuries to passengers or crew as they were all strapped-in due to previous PA. Dispatch and maintenance notified. Inspection revealed lightning strike damage previously stated. Accepted altitude loss to prevent aircraft damage.
Data retrieved from NASA's ASRS site 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.