Air Carrier flight crew reported a fume event during takeoff and climb which dissipated and resumed during final approach. Maintenance requested upon landing.
Synopsis
Air Carrier flight crew reported a fume event during takeoff and climb which dissipated and resumed during final approach. Maintenance requested upon landing.
Narrative
Possible pneumatic pack contamination led to fume event while operating from ZZZ-ZZZ1. Taking off from ZZZ; both first officer (FO) (acting as pilot flying) and I (acting as pilot monitoring) became aware of an odor; similar to dirty laundry/singed oil. The odor initially was not overly strong; started to dissipate; and was negligible once we reached cruise. I called the flight attendants (FA) who confirmed they were aware of an odor; but which was located in the rear of the cabin. Their answers to my questions regarding smell/intensity/location gave the impression that it was not very strong. No passengers complained of any odor.Both the FO and I had experienced similar situations before; but; given the short duration of the flight and because the odor had dissipated; we elected to continue to ZZZ1. I sent a message to company Maintenance Control; as a precaution. Upon descent into ZZZ1; the odor returned; but not as potent as during climb out. However; while established on the final approach to XXL; the odor returned with much more intensity than we had previously experienced. I called for oxygen (O2) masks; to be safe. It took several moments to establish adequate crew communication; mostly due to various volumes not set for O2 mask operations; along with feedback from both of us breathing into the mask. We were focused on flying the airplane; establishing better communications with each other; and given the airplane's proximity to the runway at that time; priority handling was not requested. We landed without incident.I remained on O2 while taxiing. FO eventually removed his; and confirmed the odor was not present. We parked; deplaned; and called maintenance to discuss the event. Two maintenance personnel were at the gate by the time we arrived; and after following up with maintenance; I overheard on a handheld radio that this aircraft had had a compressor wash performed in ZZZ the day before.If the compressor wash was the cause of the fumes; maintenance may need to reevaluate its procedures for fully ensuring the engine has been properly flushed.
Second reporter narrative
[Date; name; First Officer]; was the PF aircraft X from ZZZ -ZZZ1. We were in aircraft X. As we departed ZZZ; we noticed a slight smell of burning oil. It was very light and dissipated quickly. We called back to the FA's who said they had smelled it briefly as well. Believing it was very transitory; we dismissed it. As we were arriving into ZZZ1; we began smelling the scent of burning oil again. We called back to the FA's who reported they could smell it but it was very slight. Several minutes later; the odor became very strong and begun irritating our eyes and lungs. We donned our oxygen masks. By this time we were on final approach into XXL at around 3;000 feet. We landed just a few minutes later. Because of our close proximity to the ZZZ1 airport and how quickly we were landing; we opted to not request priority handling. Upon landing the odor quickly dissipated. After landing; we were informed by Maintenance control that a turbine compressor wash had been performed in ZZZ and the full procedures for it had most likely not been properly followed. My lung irritation diminished about 30 minutes later and I continued with my next assigned flight.[The cause was] Maintenance failure to follow proper procedures.[Reporter suggested] Improve work oversight.
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.