As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLIMBING THROUGH 4000 FT MSL ACID ODOR CAME THROUGH THE CABIN AND COCKPIT. DISSIPATED A FEW MINUTES LATER. FOUND LT AND RT MLG ACTUATORS LEAKING. MOVED ACFT TO THE WASHRACK. REMOVED APU DOOR PANEL FOR CLEANING. REINSTALLED APU DOOR PER M/M AND C/W OPN 5090. ALT DUCT BURNOUT. REMOVED BOTH LT AND RT MLG RETRACT ACTUATORS IAW AMM. REINSTALLED ACTS AFTER SHOP VISIT. OPS AND LEAK CHECK OK.