Major Alteration or Repair (Form 337) - Aircraft maintenance service


Major Alteration or Repair (Form 337)

UFT Maintenance coordinates the entire Form 337 process—from data path selection (STC/field approval/DER) to conformity inspections—ensuring compliant outcomes.

Overview

UFT Maintenance coordinates the entire Form 337 process—from data path selection (STC/field approval/DER) to conformity inspections—ensuring compliant outcomes.

What’s Included

  • Engineering data coordination and review
  • FAA Form 337 preparation and filing
  • Conformity inspections and documentation

Recommended

Required when performing a major repair or alteration under FAA rules.

Additional Options

  • Field approvals with local FSDO coordination
  • STC research, sourcing, and installation support

Benefits

  • Delivers compliant, documented modifications
  • Protects aircraft value and insurability
  • Provides clear record for future maintenance

Process

  1. 1. Define scope and approval path
  2. 2. Gather data and parts per approved sources
  3. 3. Perform modification or repair
  4. 4. Complete conformity inspection and file Form 337

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Keep your aircraft in top condition and experience peace of mind in every flight.

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Telephone
(941) 300-0309