# SDR 2021F00025

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 7, 2021
- Submitted: February 10, 2021
- Operation: General aviation
- Aircraft: [N328QS](https://openairdocs.org/aircraft/N328QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500175
- Aircraft time: 5,884 hours, 4,643 cycles
- System (JASC): [5520 · Elevator Structure](https://openairdocs.org/jasc/5520)
- Part: Balance Weight
- Condition: Corroded
- Location: Zone 300
- Stage of operation: IN
- How discovered: O
- Nature of condition: F
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2021F00025

## Discrepancy

DURING ACCOMPLISHMENT OF EMBRAER SERVICE BULLETIN 505-55-0004 REV 01 (DATED 06/24/2020) WE NOTED THE FOLLOWING MASS BALANCE WEIGHTS BELOW TOLERANCE AT LEFT ELEVATOR: ADJUSTABLE WEIGHTS PART NUMBERPE915109-L33 (9 EACH BELOW MINIMUM OF 84G). LEFT ELEVATOR HORN WEIGHT (P/N PE95109-L42 BELOW 1095 GRAMS, LH ELEVATOR INTERNAL MASS BALANCE WEIGHT (P/N PE915109-L40) BELOW 2809 GRAMS, RH ELEVATOR HORN MASS BALANCE WEIGHT (P/N PE915109-L42) BELOW 1095 GRAMS AND RH ELEVATOR ADJUSTABLE MASS BALANCE WEIGHTS (9 EACH) (P/N PE915109-L33) BELOW 84 GRAMS. ALL WEIGHTS HAS BEEN REPLACED WITH A NEW MASS WEIGHTS AND THE ELEVATOR BALANCING WAS PERFORMED WITH NO FURTHER DEFECTS NOTED.THE LEFT ELEVATOR WAS RE-IDENTIFIED TO PART NUMBER 505-11094-615 AND RIGHT ELEVATOR RE-IDENTIFIED TO PART NUMBER  505-11094-616 AS PER SERVICE BULLETIN INSTRUCTIONS.
THIS REPORT COMPLIES WITH FAA 14 CFR PART 135 OPERATOR’S GMM REQUIREMENTS

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